Home / 86,191.52-118,948.16-71,827.32

Finding the Fourth Proportional to 86,191.52, 118,948.16 and 71,827.32

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Solution

The fourth proportional to 86,191.52, 118,948.16 and 71,827.32 is: 99,124.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,191.52 : 118,948.16 = 71,827.32 : x
  2. Step 2: Convert to fraction form
    86,191.52/118,948.16 = 71,827.32/x
  3. Step 3: Cross multiply
    86,191.52x = 118,948.16 × 71,827.32
  4. Step 4: Simplify right side
    86,191.52x = 8,543,727,104.24
  5. Step 5: Solve for x
    x = 8,543,727,104.24/86,191.52
  6. Step 6: Final answer
    x = 99,124.91

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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.