Home / 126,405.68-174,442.20-69,815.84

Finding the Fourth Proportional to 126,405.68, 174,442.20 and 69,815.84

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Solution

The fourth proportional to 126,405.68, 174,442.20 and 69,815.84 is: 96,347.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,405.68 : 174,442.20 = 69,815.84 : x
  2. Step 2: Convert to fraction form
    126,405.68/174,442.20 = 69,815.84/x
  3. Step 3: Cross multiply
    126,405.68x = 174,442.20 × 69,815.84
  4. Step 4: Simplify right side
    126,405.68x = 12,178,828,724.45
  5. Step 5: Solve for x
    x = 12,178,828,724.45/126,405.68
  6. Step 6: Final answer
    x = 96,347.16

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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.