Home / 114,143.31-157,522.40-63,155.21

Finding the Fourth Proportional to 114,143.31, 157,522.40 and 63,155.21

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Solution

The fourth proportional to 114,143.31, 157,522.40 and 63,155.21 is: 87,156.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,143.31 : 157,522.40 = 63,155.21 : x
  2. Step 2: Convert to fraction form
    114,143.31/157,522.40 = 63,155.21/x
  3. Step 3: Cross multiply
    114,143.31x = 157,522.40 × 63,155.21
  4. Step 4: Simplify right side
    114,143.31x = 9,948,359,961.91
  5. Step 5: Solve for x
    x = 9,948,359,961.91/114,143.31
  6. Step 6: Final answer
    x = 87,156.75

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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.