Home / 139,034.20-191,868.18-75,373

Finding the Fourth Proportional to 139,034.20, 191,868.18 and 75,373

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Solution

The fourth proportional to 139,034.20, 191,868.18 and 75,373 is: 104,015.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,034.20 : 191,868.18 = 75,373 : x
  2. Step 2: Convert to fraction form
    139,034.20/191,868.18 = 75,373/x
  3. Step 3: Cross multiply
    139,034.20x = 191,868.18 × 75,373
  4. Step 4: Simplify right side
    139,034.20x = 14,461,680,331.14
  5. Step 5: Solve for x
    x = 14,461,680,331.14/139,034.20
  6. Step 6: Final answer
    x = 104,015.27

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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.