Home / 112,535.12-155,225.30-72,184.98

Finding the Fourth Proportional to 112,535.12, 155,225.30 and 72,184.98

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Solution

The fourth proportional to 112,535.12, 155,225.30 and 72,184.98 is: 99,568.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,535.12 : 155,225.30 = 72,184.98 : x
  2. Step 2: Convert to fraction form
    112,535.12/155,225.30 = 72,184.98/x
  3. Step 3: Cross multiply
    112,535.12x = 155,225.30 × 72,184.98
  4. Step 4: Simplify right side
    112,535.12x = 11,204,935,175.99
  5. Step 5: Solve for x
    x = 11,204,935,175.99/112,535.12
  6. Step 6: Final answer
    x = 99,568.34

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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.