Home / 157,741.22-217,681.76-86,121.24

Finding the Fourth Proportional to 157,741.22, 217,681.76 and 86,121.24

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Solution

The fourth proportional to 157,741.22, 217,681.76 and 86,121.24 is: 118,846.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,741.22 : 217,681.76 = 86,121.24 : x
  2. Step 2: Convert to fraction form
    157,741.22/217,681.76 = 86,121.24/x
  3. Step 3: Cross multiply
    157,741.22x = 217,681.76 × 86,121.24
  4. Step 4: Simplify right side
    157,741.22x = 18,747,023,096.58
  5. Step 5: Solve for x
    x = 18,747,023,096.58/157,741.22
  6. Step 6: Final answer
    x = 118,846.70

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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.