Home / 157,741.12-217,683.24-101,152.72

Finding the Fourth Proportional to 157,741.12, 217,683.24 and 101,152.72

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Solution

The fourth proportional to 157,741.12, 217,683.24 and 101,152.72 is: 139,591.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,741.12 : 217,683.24 = 101,152.72 : x
  2. Step 2: Convert to fraction form
    157,741.12/217,683.24 = 101,152.72/x
  3. Step 3: Cross multiply
    157,741.12x = 217,683.24 × 101,152.72
  4. Step 4: Simplify right side
    157,741.12x = 22,019,251,824.41
  5. Step 5: Solve for x
    x = 22,019,251,824.41/157,741.12
  6. Step 6: Final answer
    x = 139,591.07

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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.