Home / 120,776.13-180,350.89-98,633.43

Finding the Fourth Proportional to 120,776.13, 180,350.89 and 98,633.43

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Solution

The fourth proportional to 120,776.13, 180,350.89 and 98,633.43 is: 147,285.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,776.13 : 180,350.89 = 98,633.43 : x
  2. Step 2: Convert to fraction form
    120,776.13/180,350.89 = 98,633.43/x
  3. Step 3: Cross multiply
    120,776.13x = 180,350.89 × 98,633.43
  4. Step 4: Simplify right side
    120,776.13x = 17,788,626,637.67
  5. Step 5: Solve for x
    x = 17,788,626,637.67/120,776.13
  6. Step 6: Final answer
    x = 147,285.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.