Home / 159,714.45-220,295.43-129,501.06

Finding the Fourth Proportional to 159,714.45, 220,295.43 and 129,501.06

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Solution

The fourth proportional to 159,714.45, 220,295.43 and 129,501.06 is: 178,621.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,714.45 : 220,295.43 = 129,501.06 : x
  2. Step 2: Convert to fraction form
    159,714.45/220,295.43 = 129,501.06/x
  3. Step 3: Cross multiply
    159,714.45x = 220,295.43 × 129,501.06
  4. Step 4: Simplify right side
    159,714.45x = 28,528,491,698.16
  5. Step 5: Solve for x
    x = 28,528,491,698.16/159,714.45
  6. Step 6: Final answer
    x = 178,621.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.