Home / 112,356.20-155,113.83-76,598.75

Finding the Fourth Proportional to 112,356.20, 155,113.83 and 76,598.75

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Solution

The fourth proportional to 112,356.20, 155,113.83 and 76,598.75 is: 105,748.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,356.20 : 155,113.83 = 76,598.75 : x
  2. Step 2: Convert to fraction form
    112,356.20/155,113.83 = 76,598.75/x
  3. Step 3: Cross multiply
    112,356.20x = 155,113.83 × 76,598.75
  4. Step 4: Simplify right side
    112,356.20x = 11,881,524,710.14
  5. Step 5: Solve for x
    x = 11,881,524,710.14/112,356.20
  6. Step 6: Final answer
    x = 105,748.73

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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.