Home / 135,397.16-186,835.10-74,965.59

Finding the Fourth Proportional to 135,397.16, 186,835.10 and 74,965.59

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Solution

The fourth proportional to 135,397.16, 186,835.10 and 74,965.59 is: 103,445.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,397.16 : 186,835.10 = 74,965.59 : x
  2. Step 2: Convert to fraction form
    135,397.16/186,835.10 = 74,965.59/x
  3. Step 3: Cross multiply
    135,397.16x = 186,835.10 × 74,965.59
  4. Step 4: Simplify right side
    135,397.16x = 14,006,203,504.21
  5. Step 5: Solve for x
    x = 14,006,203,504.21/135,397.16
  6. Step 6: Final answer
    x = 103,445.33

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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.