Home / 105,217.62-145,193.85-57,461.28

Finding the Fourth Proportional to 105,217.62, 145,193.85 and 57,461.28

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Solution

The fourth proportional to 105,217.62, 145,193.85 and 57,461.28 is: 79,293.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,217.62 : 145,193.85 = 57,461.28 : x
  2. Step 2: Convert to fraction form
    105,217.62/145,193.85 = 57,461.28/x
  3. Step 3: Cross multiply
    105,217.62x = 145,193.85 × 57,461.28
  4. Step 4: Simplify right side
    105,217.62x = 8,343,024,469.13
  5. Step 5: Solve for x
    x = 8,343,024,469.13/105,217.62
  6. Step 6: Final answer
    x = 79,293.04

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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.