Home / 157,726.23-217,659.30-89,741.72

Finding the Fourth Proportional to 157,726.23, 217,659.30 and 89,741.72

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Solution

The fourth proportional to 157,726.23, 217,659.30 and 89,741.72 is: 123,841.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,726.23 : 217,659.30 = 89,741.72 : x
  2. Step 2: Convert to fraction form
    157,726.23/217,659.30 = 89,741.72/x
  3. Step 3: Cross multiply
    157,726.23x = 217,659.30 × 89,741.72
  4. Step 4: Simplify right side
    157,726.23x = 19,533,118,867.70
  5. Step 5: Solve for x
    x = 19,533,118,867.70/157,726.23
  6. Step 6: Final answer
    x = 123,841.92

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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.