Home / 125,432.48-173,085.36-71,715.80

Finding the Fourth Proportional to 125,432.48, 173,085.36 and 71,715.80

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Solution

The fourth proportional to 125,432.48, 173,085.36 and 71,715.80 is: 98,961.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,432.48 : 173,085.36 = 71,715.80 : x
  2. Step 2: Convert to fraction form
    125,432.48/173,085.36 = 71,715.80/x
  3. Step 3: Cross multiply
    125,432.48x = 173,085.36 × 71,715.80
  4. Step 4: Simplify right side
    125,432.48x = 12,412,955,060.69
  5. Step 5: Solve for x
    x = 12,412,955,060.69/125,432.48
  6. Step 6: Final answer
    x = 98,961.25

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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.