Home / 143,432.40-215,148.60-84,334.80

Finding the Fourth Proportional to 143,432.40, 215,148.60 and 84,334.80

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Solution

The fourth proportional to 143,432.40, 215,148.60 and 84,334.80 is: 126,502.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,432.40 : 215,148.60 = 84,334.80 : x
  2. Step 2: Convert to fraction form
    143,432.40/215,148.60 = 84,334.80/x
  3. Step 3: Cross multiply
    143,432.40x = 215,148.60 × 84,334.80
  4. Step 4: Simplify right side
    143,432.40x = 18,144,514,151.28
  5. Step 5: Solve for x
    x = 18,144,514,151.28/143,432.40
  6. Step 6: Final answer
    x = 126,502.20

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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.