Home / 102,693.30-154,155.15-79,422.90

Finding the Fourth Proportional to 102,693.30, 154,155.15 and 79,422.90

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Solution

The fourth proportional to 102,693.30, 154,155.15 and 79,422.90 is: 119,223.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,693.30 : 154,155.15 = 79,422.90 : x
  2. Step 2: Convert to fraction form
    102,693.30/154,155.15 = 79,422.90/x
  3. Step 3: Cross multiply
    102,693.30x = 154,155.15 × 79,422.90
  4. Step 4: Simplify right side
    102,693.30x = 12,243,449,062.94
  5. Step 5: Solve for x
    x = 12,243,449,062.94/102,693.30
  6. Step 6: Final answer
    x = 119,223.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.