Home / 108,840.10-163,260.15-86,532.70

Finding the Fourth Proportional to 108,840.10, 163,260.15 and 86,532.70

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Solution

The fourth proportional to 108,840.10, 163,260.15 and 86,532.70 is: 129,799.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,840.10 : 163,260.15 = 86,532.70 : x
  2. Step 2: Convert to fraction form
    108,840.10/163,260.15 = 86,532.70/x
  3. Step 3: Cross multiply
    108,840.10x = 163,260.15 × 86,532.70
  4. Step 4: Simplify right side
    108,840.10x = 14,127,341,581.91
  5. Step 5: Solve for x
    x = 14,127,341,581.91/108,840.10
  6. Step 6: Final answer
    x = 129,799.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.