Home / 131,899.79-182,030.64-74,519.21

Finding the Fourth Proportional to 131,899.79, 182,030.64 and 74,519.21

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Solution

The fourth proportional to 131,899.79, 182,030.64 and 74,519.21 is: 102,841.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,899.79 : 182,030.64 = 74,519.21 : x
  2. Step 2: Convert to fraction form
    131,899.79/182,030.64 = 74,519.21/x
  3. Step 3: Cross multiply
    131,899.79x = 182,030.64 × 74,519.21
  4. Step 4: Simplify right side
    131,899.79x = 13,564,779,488.59
  5. Step 5: Solve for x
    x = 13,564,779,488.59/131,899.79
  6. Step 6: Final answer
    x = 102,841.55

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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.