Home / 147,003.80-220,547.57-72,146.43

Finding the Fourth Proportional to 147,003.80, 220,547.57 and 72,146.43

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Solution

The fourth proportional to 147,003.80, 220,547.57 and 72,146.43 is: 108,240.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,003.80 : 220,547.57 = 72,146.43 : x
  2. Step 2: Convert to fraction form
    147,003.80/220,547.57 = 72,146.43/x
  3. Step 3: Cross multiply
    147,003.80x = 220,547.57 × 72,146.43
  4. Step 4: Simplify right side
    147,003.80x = 15,911,719,820.68
  5. Step 5: Solve for x
    x = 15,911,719,820.68/147,003.80
  6. Step 6: Final answer
    x = 108,240.19

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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.