Home / 108,535.36-163,129.20-89,937.76

Finding the Fourth Proportional to 108,535.36, 163,129.20 and 89,937.76

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Solution

The fourth proportional to 108,535.36, 163,129.20 and 89,937.76 is: 135,176.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,535.36 : 163,129.20 = 89,937.76 : x
  2. Step 2: Convert to fraction form
    108,535.36/163,129.20 = 89,937.76/x
  3. Step 3: Cross multiply
    108,535.36x = 163,129.20 × 89,937.76
  4. Step 4: Simplify right side
    108,535.36x = 14,671,474,838.59
  5. Step 5: Solve for x
    x = 14,671,474,838.59/108,535.36
  6. Step 6: Final answer
    x = 135,176.91

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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.