Home / 147,037.20-220,555.80-105,565.20

Finding the Fourth Proportional to 147,037.20, 220,555.80 and 105,565.20

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Solution

The fourth proportional to 147,037.20, 220,555.80 and 105,565.20 is: 158,347.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,037.20 : 220,555.80 = 105,565.20 : x
  2. Step 2: Convert to fraction form
    147,037.20/220,555.80 = 105,565.20/x
  3. Step 3: Cross multiply
    147,037.20x = 220,555.80 × 105,565.20
  4. Step 4: Simplify right side
    147,037.20x = 23,283,017,138.16
  5. Step 5: Solve for x
    x = 23,283,017,138.16/147,037.20
  6. Step 6: Final answer
    x = 158,347.80

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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.