Home / 148,709.07-205,125.12-88,236.90

Finding the Fourth Proportional to 148,709.07, 205,125.12 and 88,236.90

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Solution

The fourth proportional to 148,709.07, 205,125.12 and 88,236.90 is: 121,711.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,709.07 : 205,125.12 = 88,236.90 : x
  2. Step 2: Convert to fraction form
    148,709.07/205,125.12 = 88,236.90/x
  3. Step 3: Cross multiply
    148,709.07x = 205,125.12 × 88,236.90
  4. Step 4: Simplify right side
    148,709.07x = 18,099,604,700.93
  5. Step 5: Solve for x
    x = 18,099,604,700.93/148,709.07
  6. Step 6: Final answer
    x = 121,711.50

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1.5x scale

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.