Home / 139,927,599.04-193,162,013.63-90,392,130.98

Finding the Fourth Proportional to 139,927,599.04, 193,162,013.63 and 90,392,130.98

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Solution

The fourth proportional to 139,927,599.04, 193,162,013.63 and 90,392,130.98 is: 124,781,145.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,927,599.04 : 193,162,013.63 = 90,392,130.98 : x
  2. Step 2: Convert to fraction form
    139,927,599.04/193,162,013.63 = 90,392,130.98/x
  3. Step 3: Cross multiply
    139,927,599.04x = 193,162,013.63 × 90,392,130.98
  4. Step 4: Simplify right side
    139,927,599.04x = 17,460,326,036,773,420
  5. Step 5: Solve for x
    x = 17,460,326,036,773,420/139,927,599.04
  6. Step 6: Final answer
    x = 124,781,145.08

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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.