Home / 131,725.17-181,779.48-71,294.49

Finding the Fourth Proportional to 131,725.17, 181,779.48 and 71,294.49

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Solution

The fourth proportional to 131,725.17, 181,779.48 and 71,294.49 is: 98,385.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,725.17 : 181,779.48 = 71,294.49 : x
  2. Step 2: Convert to fraction form
    131,725.17/181,779.48 = 71,294.49/x
  3. Step 3: Cross multiply
    131,725.17x = 181,779.48 × 71,294.49
  4. Step 4: Simplify right side
    131,725.17x = 12,959,875,319.07
  5. Step 5: Solve for x
    x = 12,959,875,319.07/131,725.17
  6. Step 6: Final answer
    x = 98,385.72

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1.5x scale

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.