Home / 157,742.15-217,683.03-86,122.17

Finding the Fourth Proportional to 157,742.15, 217,683.03 and 86,122.17

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Solution

The fourth proportional to 157,742.15, 217,683.03 and 86,122.17 is: 118,847.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,742.15 : 217,683.03 = 86,122.17 : x
  2. Step 2: Convert to fraction form
    157,742.15/217,683.03 = 86,122.17/x
  3. Step 3: Cross multiply
    157,742.15x = 217,683.03 × 86,122.17
  4. Step 4: Simplify right side
    157,742.15x = 18,747,335,459.98
  5. Step 5: Solve for x
    x = 18,747,335,459.98/157,742.15
  6. Step 6: Final answer
    x = 118,847.98

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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.