Home / 135,061.23-186,381.93-74,630.58

Finding the Fourth Proportional to 135,061.23, 186,381.93 and 74,630.58

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Solution

The fourth proportional to 135,061.23, 186,381.93 and 74,630.58 is: 102,988.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,061.23 : 186,381.93 = 74,630.58 : x
  2. Step 2: Convert to fraction form
    135,061.23/186,381.93 = 74,630.58/x
  3. Step 3: Cross multiply
    135,061.23x = 186,381.93 × 74,630.58
  4. Step 4: Simplify right side
    135,061.23x = 13,909,791,537.42
  5. Step 5: Solve for x
    x = 13,909,791,537.42/135,061.23
  6. Step 6: Final answer
    x = 102,988.78

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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.