Home / 151,142.20-208,434.64-93,790.83

Finding the Fourth Proportional to 151,142.20, 208,434.64 and 93,790.83

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Solution

The fourth proportional to 151,142.20, 208,434.64 and 93,790.83 is: 129,343.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,142.20 : 208,434.64 = 93,790.83 : x
  2. Step 2: Convert to fraction form
    151,142.20/208,434.64 = 93,790.83/x
  3. Step 3: Cross multiply
    151,142.20x = 208,434.64 × 93,790.83
  4. Step 4: Simplify right side
    151,142.20x = 19,549,257,886.35
  5. Step 5: Solve for x
    x = 19,549,257,886.35/151,142.20
  6. Step 6: Final answer
    x = 129,343.48

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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.