Home / 125,151.16-172,682.71-71,453.65

Finding the Fourth Proportional to 125,151.16, 172,682.71 and 71,453.65

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Solution

The fourth proportional to 125,151.16, 172,682.71 and 71,453.65 is: 98,591.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,151.16 : 172,682.71 = 71,453.65 : x
  2. Step 2: Convert to fraction form
    125,151.16/172,682.71 = 71,453.65/x
  3. Step 3: Cross multiply
    125,151.16x = 172,682.71 × 71,453.65
  4. Step 4: Simplify right side
    125,151.16x = 12,338,809,921.39
  5. Step 5: Solve for x
    x = 12,338,809,921.39/125,151.16
  6. Step 6: Final answer
    x = 98,591.25

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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.