Home / 126,531.15-174,259.65-105,115.15

Finding the Fourth Proportional to 126,531.15, 174,259.65 and 105,115.15

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Solution

The fourth proportional to 126,531.15, 174,259.65 and 105,115.15 is: 144,765.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,531.15 : 174,259.65 = 105,115.15 : x
  2. Step 2: Convert to fraction form
    126,531.15/174,259.65 = 105,115.15/x
  3. Step 3: Cross multiply
    126,531.15x = 174,259.65 × 105,115.15
  4. Step 4: Simplify right side
    126,531.15x = 18,317,329,248.70
  5. Step 5: Solve for x
    x = 18,317,329,248.70/126,531.15
  6. Step 6: Final answer
    x = 144,765.37

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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.