Home / 108,602.20-149,875.09-60,853.78

Finding the Fourth Proportional to 108,602.20, 149,875.09 and 60,853.78

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Solution

The fourth proportional to 108,602.20, 149,875.09 and 60,853.78 is: 83,980.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,602.20 : 149,875.09 = 60,853.78 : x
  2. Step 2: Convert to fraction form
    108,602.20/149,875.09 = 60,853.78/x
  3. Step 3: Cross multiply
    108,602.20x = 149,875.09 × 60,853.78
  4. Step 4: Simplify right side
    108,602.20x = 9,120,466,131.85
  5. Step 5: Solve for x
    x = 9,120,466,131.85/108,602.20
  6. Step 6: Final answer
    x = 83,980.49

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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.