Home / 191,331.60-286,841.88-66,760.08

Finding the Fourth Proportional to 191,331.60, 286,841.88 and 66,760.08

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Solution

The fourth proportional to 191,331.60, 286,841.88 and 66,760.08 is: 100,085.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,331.60 : 286,841.88 = 66,760.08 : x
  2. Step 2: Convert to fraction form
    191,331.60/286,841.88 = 66,760.08/x
  3. Step 3: Cross multiply
    191,331.60x = 286,841.88 × 66,760.08
  4. Step 4: Simplify right side
    191,331.60x = 19,149,586,856.15
  5. Step 5: Solve for x
    x = 19,149,586,856.15/191,331.60
  6. Step 6: Final answer
    x = 100,085.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.