Home / 108,319.88-149,478.63-59,920.54

Finding the Fourth Proportional to 108,319.88, 149,478.63 and 59,920.54

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Solution

The fourth proportional to 108,319.88, 149,478.63 and 59,920.54 is: 82,688.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,319.88 : 149,478.63 = 59,920.54 : x
  2. Step 2: Convert to fraction form
    108,319.88/149,478.63 = 59,920.54/x
  3. Step 3: Cross multiply
    108,319.88x = 149,478.63 × 59,920.54
  4. Step 4: Simplify right side
    108,319.88x = 8,956,840,414.91
  5. Step 5: Solve for x
    x = 8,956,840,414.91/108,319.88
  6. Step 6: Final answer
    x = 82,688.80

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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.