Home / 112,276.13-168,535.52-99,875.57

Finding the Fourth Proportional to 112,276.13, 168,535.52 and 99,875.57

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Solution

The fourth proportional to 112,276.13, 168,535.52 and 99,875.57 is: 149,921.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,276.13 : 168,535.52 = 99,875.57 : x
  2. Step 2: Convert to fraction form
    112,276.13/168,535.52 = 99,875.57/x
  3. Step 3: Cross multiply
    112,276.13x = 168,535.52 × 99,875.57
  4. Step 4: Simplify right side
    112,276.13x = 16,832,581,125.25
  5. Step 5: Solve for x
    x = 16,832,581,125.25/112,276.13
  6. Step 6: Final answer
    x = 149,921.28

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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.