Home / 157,695.12-217,618.38-86,074.92

Finding the Fourth Proportional to 157,695.12, 217,618.38 and 86,074.92

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Solution

The fourth proportional to 157,695.12, 217,618.38 and 86,074.92 is: 118,782.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,695.12 : 217,618.38 = 86,074.92 : x
  2. Step 2: Convert to fraction form
    157,695.12/217,618.38 = 86,074.92/x
  3. Step 3: Cross multiply
    157,695.12x = 217,618.38 × 86,074.92
  4. Step 4: Simplify right side
    157,695.12x = 18,731,484,649.03
  5. Step 5: Solve for x
    x = 18,731,484,649.03/157,695.12
  6. Step 6: Final answer
    x = 118,782.91

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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.