Home / 157,157.32-216,877.09-85,537.87

Finding the Fourth Proportional to 157,157.32, 216,877.09 and 85,537.87

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Solution

The fourth proportional to 157,157.32, 216,877.09 and 85,537.87 is: 118,042.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,157.32 : 216,877.09 = 85,537.87 : x
  2. Step 2: Convert to fraction form
    157,157.32/216,877.09 = 85,537.87/x
  3. Step 3: Cross multiply
    157,157.32x = 216,877.09 × 85,537.87
  4. Step 4: Simplify right side
    157,157.32x = 18,551,202,818.32
  5. Step 5: Solve for x
    x = 18,551,202,818.32/157,157.32
  6. Step 6: Final answer
    x = 118,042.24

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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.