Home / 157,669.08-217,820.30-103,350.18

Finding the Fourth Proportional to 157,669.08, 217,820.30 and 103,350.18

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Solution

The fourth proportional to 157,669.08, 217,820.30 and 103,350.18 is: 142,778.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,669.08 : 217,820.30 = 103,350.18 : x
  2. Step 2: Convert to fraction form
    157,669.08/217,820.30 = 103,350.18/x
  3. Step 3: Cross multiply
    157,669.08x = 217,820.30 × 103,350.18
  4. Step 4: Simplify right side
    157,669.08x = 22,511,767,212.65
  5. Step 5: Solve for x
    x = 22,511,767,212.65/157,669.08
  6. Step 6: Final answer
    x = 142,778.58

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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.