Home / 99,381.04-148,503.78-75,557.68

Finding the Fourth Proportional to 99,381.04, 148,503.78 and 75,557.68

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Solution

The fourth proportional to 99,381.04, 148,503.78 and 75,557.68 is: 112,904.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,381.04 : 148,503.78 = 75,557.68 : x
  2. Step 2: Convert to fraction form
    99,381.04/148,503.78 = 75,557.68/x
  3. Step 3: Cross multiply
    99,381.04x = 148,503.78 × 75,557.68
  4. Step 4: Simplify right side
    99,381.04x = 11,220,601,088.03
  5. Step 5: Solve for x
    x = 11,220,601,088.03/99,381.04
  6. Step 6: Final answer
    x = 112,904.85

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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.