Home / 126,415.13-174,452.90-69,830.15

Finding the Fourth Proportional to 126,415.13, 174,452.90 and 69,830.15

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Solution

The fourth proportional to 126,415.13, 174,452.90 and 69,830.15 is: 96,365.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,415.13 : 174,452.90 = 69,830.15 : x
  2. Step 2: Convert to fraction form
    126,415.13/174,452.90 = 69,830.15/x
  3. Step 3: Cross multiply
    126,415.13x = 174,452.90 × 69,830.15
  4. Step 4: Simplify right side
    126,415.13x = 12,182,070,953.52
  5. Step 5: Solve for x
    x = 12,182,070,953.52/126,415.13
  6. Step 6: Final answer
    x = 96,365.61

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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.