Home / 157,742.12-217,684.62-101,153.72

Finding the Fourth Proportional to 157,742.12, 217,684.62 and 101,153.72

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Solution

The fourth proportional to 157,742.12, 217,684.62 and 101,153.72 is: 139,592.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,742.12 : 217,684.62 = 101,153.72 : x
  2. Step 2: Convert to fraction form
    157,742.12/217,684.62 = 101,153.72/x
  3. Step 3: Cross multiply
    157,742.12x = 217,684.62 × 101,153.72
  4. Step 4: Simplify right side
    157,742.12x = 22,019,609,099.79
  5. Step 5: Solve for x
    x = 22,019,609,099.79/157,742.12
  6. Step 6: Final answer
    x = 139,592.45

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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.