Home / 108,337.16-149,545.48-81,557.35

Finding the Fourth Proportional to 108,337.16, 149,545.48 and 81,557.35

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Solution

The fourth proportional to 108,337.16, 149,545.48 and 81,557.35 is: 112,579.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,337.16 : 149,545.48 = 81,557.35 : x
  2. Step 2: Convert to fraction form
    108,337.16/149,545.48 = 81,557.35/x
  3. Step 3: Cross multiply
    108,337.16x = 149,545.48 × 81,557.35
  4. Step 4: Simplify right side
    108,337.16x = 12,196,532,305.55
  5. Step 5: Solve for x
    x = 12,196,532,305.55/108,337.16
  6. Step 6: Final answer
    x = 112,579.40

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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.