Home / 157,330.32-217,114.77-85,710.39

Finding the Fourth Proportional to 157,330.32, 217,114.77 and 85,710.39

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Solution

The fourth proportional to 157,330.32, 217,114.77 and 85,710.39 is: 118,279.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,330.32 : 217,114.77 = 85,710.39 : x
  2. Step 2: Convert to fraction form
    157,330.32/217,114.77 = 85,710.39/x
  3. Step 3: Cross multiply
    157,330.32x = 217,114.77 × 85,710.39
  4. Step 4: Simplify right side
    157,330.32x = 18,608,991,611.46
  5. Step 5: Solve for x
    x = 18,608,991,611.46/157,330.32
  6. Step 6: Final answer
    x = 118,279.75

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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.