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Finding the Fourth Proportional to 108,290.78, 149,444.45 and 59,894.15

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Solution

The fourth proportional to 108,290.78, 149,444.45 and 59,894.15 is: 82,655.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,290.78 : 149,444.45 = 59,894.15 : x
  2. Step 2: Convert to fraction form
    108,290.78/149,444.45 = 59,894.15/x
  3. Step 3: Cross multiply
    108,290.78x = 149,444.45 × 59,894.15
  4. Step 4: Simplify right side
    108,290.78x = 8,950,847,258.27
  5. Step 5: Solve for x
    x = 8,950,847,258.27/108,290.78
  6. Step 6: Final answer
    x = 82,655.68

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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.