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Finding the Fourth Proportional to 157,184.96, 216,890.88 and 90,104

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Solution

The fourth proportional to 157,184.96, 216,890.88 and 90,104 is: 124,329.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,184.96 : 216,890.88 = 90,104 : x
  2. Step 2: Convert to fraction form
    157,184.96/216,890.88 = 90,104/x
  3. Step 3: Cross multiply
    157,184.96x = 216,890.88 × 90,104
  4. Step 4: Simplify right side
    157,184.96x = 19,542,735,851.52
  5. Step 5: Solve for x
    x = 19,542,735,851.52/157,184.96
  6. Step 6: Final answer
    x = 124,329.55

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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.