Home / 157,434.14-217,252.45-85,812.46

Finding the Fourth Proportional to 157,434.14, 217,252.45 and 85,812.46

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Solution

The fourth proportional to 157,434.14, 217,252.45 and 85,812.46 is: 118,417.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,434.14 : 217,252.45 = 85,812.46 : x
  2. Step 2: Convert to fraction form
    157,434.14/217,252.45 = 85,812.46/x
  3. Step 3: Cross multiply
    157,434.14x = 217,252.45 × 85,812.46
  4. Step 4: Simplify right side
    157,434.14x = 18,642,967,175.53
  5. Step 5: Solve for x
    x = 18,642,967,175.53/157,434.14
  6. Step 6: Final answer
    x = 118,417.56

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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.