Home / 147,320.80-220,981.20-53,814.40

Finding the Fourth Proportional to 147,320.80, 220,981.20 and 53,814.40

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Solution

The fourth proportional to 147,320.80, 220,981.20 and 53,814.40 is: 80,721.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,320.80 : 220,981.20 = 53,814.40 : x
  2. Step 2: Convert to fraction form
    147,320.80/220,981.20 = 53,814.40/x
  3. Step 3: Cross multiply
    147,320.80x = 220,981.20 × 53,814.40
  4. Step 4: Simplify right side
    147,320.80x = 11,891,970,689.28
  5. Step 5: Solve for x
    x = 11,891,970,689.28/147,320.80
  6. Step 6: Final answer
    x = 80,721.60

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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.