Home / 153,150.35-229,575.55-85,715.32

Finding the Fourth Proportional to 153,150.35, 229,575.55 and 85,715.32

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Solution

The fourth proportional to 153,150.35, 229,575.55 and 85,715.32 is: 128,489.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,150.35 : 229,575.55 = 85,715.32 : x
  2. Step 2: Convert to fraction form
    153,150.35/229,575.55 = 85,715.32/x
  3. Step 3: Cross multiply
    153,150.35x = 229,575.55 × 85,715.32
  4. Step 4: Simplify right side
    153,150.35x = 19,678,142,126.54
  5. Step 5: Solve for x
    x = 19,678,142,126.54/153,150.35
  6. Step 6: Final answer
    x = 128,489.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.