Home / 145,480.90-218,221.61-45,648.76

Finding the Fourth Proportional to 145,480.90, 218,221.61 and 45,648.76

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Solution

The fourth proportional to 145,480.90, 218,221.61 and 45,648.76 is: 68,473.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,480.90 : 218,221.61 = 45,648.76 : x
  2. Step 2: Convert to fraction form
    145,480.90/218,221.61 = 45,648.76/x
  3. Step 3: Cross multiply
    145,480.90x = 218,221.61 × 45,648.76
  4. Step 4: Simplify right side
    145,480.90x = 9,961,545,901.70
  5. Step 5: Solve for x
    x = 9,961,545,901.70/145,480.90
  6. Step 6: Final answer
    x = 68,473.22

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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.