Home / 109,529.68-151,144.66-61,780.18

Finding the Fourth Proportional to 109,529.68, 151,144.66 and 61,780.18

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Solution

The fourth proportional to 109,529.68, 151,144.66 and 61,780.18 is: 85,253.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,529.68 : 151,144.66 = 61,780.18 : x
  2. Step 2: Convert to fraction form
    109,529.68/151,144.66 = 61,780.18/x
  3. Step 3: Cross multiply
    109,529.68x = 151,144.66 × 61,780.18
  4. Step 4: Simplify right side
    109,529.68x = 9,337,744,300.84
  5. Step 5: Solve for x
    x = 9,337,744,300.84/109,529.68
  6. Step 6: Final answer
    x = 85,253.10

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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.