Home / 112,178.75-154,800.59-64,432.10

Finding the Fourth Proportional to 112,178.75, 154,800.59 and 64,432.10

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Solution

The fourth proportional to 112,178.75, 154,800.59 and 64,432.10 is: 88,912.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,178.75 : 154,800.59 = 64,432.10 : x
  2. Step 2: Convert to fraction form
    112,178.75/154,800.59 = 64,432.10/x
  3. Step 3: Cross multiply
    112,178.75x = 154,800.59 × 64,432.10
  4. Step 4: Simplify right side
    112,178.75x = 9,974,127,159.78
  5. Step 5: Solve for x
    x = 9,974,127,159.78/112,178.75
  6. Step 6: Final answer
    x = 88,912.81

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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.