Home / 84,150.16-126,316.23-74,849.74

Finding the Fourth Proportional to 84,150.16, 126,316.23 and 74,849.74

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Solution

The fourth proportional to 84,150.16, 126,316.23 and 74,849.74 is: 112,355.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,150.16 : 126,316.23 = 74,849.74 : x
  2. Step 2: Convert to fraction form
    84,150.16/126,316.23 = 74,849.74/x
  3. Step 3: Cross multiply
    84,150.16x = 126,316.23 × 74,849.74
  4. Step 4: Simplify right side
    84,150.16x = 9,454,736,973.28
  5. Step 5: Solve for x
    x = 9,454,736,973.28/84,150.16
  6. Step 6: Final answer
    x = 112,355.54

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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.