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Finding the Fourth Proportional to 126,555, 174,649.56 and 69,970.02

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Solution

The fourth proportional to 126,555, 174,649.56 and 69,970.02 is: 96,560.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,555 : 174,649.56 = 69,970.02 : x
  2. Step 2: Convert to fraction form
    126,555/174,649.56 = 69,970.02/x
  3. Step 3: Cross multiply
    126,555x = 174,649.56 × 69,970.02
  4. Step 4: Simplify right side
    126,555x = 12,220,233,206.19
  5. Step 5: Solve for x
    x = 12,220,233,206.19/126,555
  6. Step 6: Final answer
    x = 96,560.65

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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.