Home / 115,124.28-158,869.10-64,136.94

Finding the Fourth Proportional to 115,124.28, 158,869.10 and 64,136.94

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Solution

The fourth proportional to 115,124.28, 158,869.10 and 64,136.94 is: 88,507.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,124.28 : 158,869.10 = 64,136.94 : x
  2. Step 2: Convert to fraction form
    115,124.28/158,869.10 = 64,136.94/x
  3. Step 3: Cross multiply
    115,124.28x = 158,869.10 × 64,136.94
  4. Step 4: Simplify right side
    115,124.28x = 10,189,377,613.87
  5. Step 5: Solve for x
    x = 10,189,377,613.87/115,124.28
  6. Step 6: Final answer
    x = 88,507.63

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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.