Home / 129,386.92-193,924.86-70,220.20

Finding the Fourth Proportional to 129,386.92, 193,924.86 and 70,220.20

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Solution

The fourth proportional to 129,386.92, 193,924.86 and 70,220.20 is: 105,245.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,386.92 : 193,924.86 = 70,220.20 : x
  2. Step 2: Convert to fraction form
    129,386.92/193,924.86 = 70,220.20/x
  3. Step 3: Cross multiply
    129,386.92x = 193,924.86 × 70,220.20
  4. Step 4: Simplify right side
    129,386.92x = 13,617,442,454.17
  5. Step 5: Solve for x
    x = 13,617,442,454.17/129,386.92
  6. Step 6: Final answer
    x = 105,245.90

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1.5x scale

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.