Home / 119,886.86-165,342.30-72,131.29

Finding the Fourth Proportional to 119,886.86, 165,342.30 and 72,131.29

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Solution

The fourth proportional to 119,886.86, 165,342.30 and 72,131.29 is: 99,480.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,886.86 : 165,342.30 = 72,131.29 : x
  2. Step 2: Convert to fraction form
    119,886.86/165,342.30 = 72,131.29/x
  3. Step 3: Cross multiply
    119,886.86x = 165,342.30 × 72,131.29
  4. Step 4: Simplify right side
    119,886.86x = 11,926,352,706.72
  5. Step 5: Solve for x
    x = 11,926,352,706.72/119,886.86
  6. Step 6: Final answer
    x = 99,480.06

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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.