Home / 157,817.97-217,779.98-89,851.55

Finding the Fourth Proportional to 157,817.97, 217,779.98 and 89,851.55

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Solution

The fourth proportional to 157,817.97, 217,779.98 and 89,851.55 is: 123,990.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,817.97 : 217,779.98 = 89,851.55 : x
  2. Step 2: Convert to fraction form
    157,817.97/217,779.98 = 89,851.55/x
  3. Step 3: Cross multiply
    157,817.97x = 217,779.98 × 89,851.55
  4. Step 4: Simplify right side
    157,817.97x = 19,567,867,223.81
  5. Step 5: Solve for x
    x = 19,567,867,223.81/157,817.97
  6. Step 6: Final answer
    x = 123,990.11

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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.