Home / 157,082.94-216,778.18-89,104.50

Finding the Fourth Proportional to 157,082.94, 216,778.18 and 89,104.50

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Solution

The fourth proportional to 157,082.94, 216,778.18 and 89,104.50 is: 122,966.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,082.94 : 216,778.18 = 89,104.50 : x
  2. Step 2: Convert to fraction form
    157,082.94/216,778.18 = 89,104.50/x
  3. Step 3: Cross multiply
    157,082.94x = 216,778.18 × 89,104.50
  4. Step 4: Simplify right side
    157,082.94x = 19,315,911,339.81
  5. Step 5: Solve for x
    x = 19,315,911,339.81/157,082.94
  6. Step 6: Final answer
    x = 122,966.32

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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.