Home / 146,721.60-220,082.40-76,737.60

Finding the Fourth Proportional to 146,721.60, 220,082.40 and 76,737.60

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Solution

The fourth proportional to 146,721.60, 220,082.40 and 76,737.60 is: 115,106.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,721.60 : 220,082.40 = 76,737.60 : x
  2. Step 2: Convert to fraction form
    146,721.60/220,082.40 = 76,737.60/x
  3. Step 3: Cross multiply
    146,721.60x = 220,082.40 × 76,737.60
  4. Step 4: Simplify right side
    146,721.60x = 16,888,595,178.24
  5. Step 5: Solve for x
    x = 16,888,595,178.24/146,721.60
  6. Step 6: Final answer
    x = 115,106.40

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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.