Home / 134,857,990.84-186,084,007.95-81,907,143.88

Finding the Fourth Proportional to 134,857,990.84, 186,084,007.95 and 81,907,143.88

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Solution

The fourth proportional to 134,857,990.84, 186,084,007.95 and 81,907,143.88 is: 113,019,699.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,857,990.84 : 186,084,007.95 = 81,907,143.88 : x
  2. Step 2: Convert to fraction form
    134,857,990.84/186,084,007.95 = 81,907,143.88/x
  3. Step 3: Cross multiply
    134,857,990.84x = 186,084,007.95 × 81,907,143.88
  4. Step 4: Simplify right side
    134,857,990.84x = 15,241,609,612,927,712
  5. Step 5: Solve for x
    x = 15,241,609,612,927,712/134,857,990.84
  6. Step 6: Final answer
    x = 113,019,699.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.