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Finding the Fourth Proportional to 126,703.65, 174,823.13 and 75,708.75

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Solution

The fourth proportional to 126,703.65, 174,823.13 and 75,708.75 is: 104,461.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,703.65 : 174,823.13 = 75,708.75 : x
  2. Step 2: Convert to fraction form
    126,703.65/174,823.13 = 75,708.75/x
  3. Step 3: Cross multiply
    126,703.65x = 174,823.13 × 75,708.75
  4. Step 4: Simplify right side
    126,703.65x = 13,235,640,832.66
  5. Step 5: Solve for x
    x = 13,235,640,832.66/126,703.65
  6. Step 6: Final answer
    x = 104,461.40

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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.