Home / 153,150.53-229,575.81-85,715.49

Finding the Fourth Proportional to 153,150.53, 229,575.81 and 85,715.49

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Solution

The fourth proportional to 153,150.53, 229,575.81 and 85,715.49 is: 128,489.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,150.53 : 229,575.81 = 85,715.49 : x
  2. Step 2: Convert to fraction form
    153,150.53/229,575.81 = 85,715.49/x
  3. Step 3: Cross multiply
    153,150.53x = 229,575.81 × 85,715.49
  4. Step 4: Simplify right side
    153,150.53x = 19,678,203,620.24
  5. Step 5: Solve for x
    x = 19,678,203,620.24/153,150.53
  6. Step 6: Final answer
    x = 128,489.30

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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.