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Finding the Fourth Proportional to 147,737.28, 221,482.56 and 68,810.88

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Solution

The fourth proportional to 147,737.28, 221,482.56 and 68,810.88 is: 103,158.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,737.28 : 221,482.56 = 68,810.88 : x
  2. Step 2: Convert to fraction form
    147,737.28/221,482.56 = 68,810.88/x
  3. Step 3: Cross multiply
    147,737.28x = 221,482.56 × 68,810.88
  4. Step 4: Simplify right side
    147,737.28x = 15,240,409,858.25
  5. Step 5: Solve for x
    x = 15,240,409,858.25/147,737.28
  6. Step 6: Final answer
    x = 103,158.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.