Home / 143,648.50-215,472.76-45,152.50

Finding the Fourth Proportional to 143,648.50, 215,472.76 and 45,152.50

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Solution

The fourth proportional to 143,648.50, 215,472.76 and 45,152.50 is: 67,728.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,648.50 : 215,472.76 = 45,152.50 : x
  2. Step 2: Convert to fraction form
    143,648.50/215,472.76 = 45,152.50/x
  3. Step 3: Cross multiply
    143,648.50x = 215,472.76 × 45,152.50
  4. Step 4: Simplify right side
    143,648.50x = 9,729,133,795.90
  5. Step 5: Solve for x
    x = 9,729,133,795.90/143,648.50
  6. Step 6: Final answer
    x = 67,728.75

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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.