Home / 112,972.80-169,459.20-28,732.80

Finding the Fourth Proportional to 112,972.80, 169,459.20 and 28,732.80

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Solution

The fourth proportional to 112,972.80, 169,459.20 and 28,732.80 is: 43,099.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,972.80 : 169,459.20 = 28,732.80 : x
  2. Step 2: Convert to fraction form
    112,972.80/169,459.20 = 28,732.80/x
  3. Step 3: Cross multiply
    112,972.80x = 169,459.20 × 28,732.80
  4. Step 4: Simplify right side
    112,972.80x = 4,869,037,301.76
  5. Step 5: Solve for x
    x = 4,869,037,301.76/112,972.80
  6. Step 6: Final answer
    x = 43,099.20

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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.