Home / 157,494.99-217,343.07-85,875.21

Finding the Fourth Proportional to 157,494.99, 217,343.07 and 85,875.21

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Solution

The fourth proportional to 157,494.99, 217,343.07 and 85,875.21 is: 118,507.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,494.99 : 217,343.07 = 85,875.21 : x
  2. Step 2: Convert to fraction form
    157,494.99/217,343.07 = 85,875.21/x
  3. Step 3: Cross multiply
    157,494.99x = 217,343.07 × 85,875.21
  4. Step 4: Simplify right side
    157,494.99x = 18,664,381,778.29
  5. Step 5: Solve for x
    x = 18,664,381,778.29/157,494.99
  6. Step 6: Final answer
    x = 118,507.78

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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.