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Finding the Fourth Proportional to 157,080.94, 216,775.42 and 89,102.50

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Solution

The fourth proportional to 157,080.94, 216,775.42 and 89,102.50 is: 122,963.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,080.94 : 216,775.42 = 89,102.50 : x
  2. Step 2: Convert to fraction form
    157,080.94/216,775.42 = 89,102.50/x
  3. Step 3: Cross multiply
    157,080.94x = 216,775.42 × 89,102.50
  4. Step 4: Simplify right side
    157,080.94x = 19,315,231,597.06
  5. Step 5: Solve for x
    x = 19,315,231,597.06/157,080.94
  6. Step 6: Final answer
    x = 122,963.56

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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.