Home / 125,851.10-188,776.65-121,012.70

Finding the Fourth Proportional to 125,851.10, 188,776.65 and 121,012.70

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Solution

The fourth proportional to 125,851.10, 188,776.65 and 121,012.70 is: 181,519.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,851.10 : 188,776.65 = 121,012.70 : x
  2. Step 2: Convert to fraction form
    125,851.10/188,776.65 = 121,012.70/x
  3. Step 3: Cross multiply
    125,851.10x = 188,776.65 × 121,012.70
  4. Step 4: Simplify right side
    125,851.10x = 22,844,372,113.46
  5. Step 5: Solve for x
    x = 22,844,372,113.46/125,851.10
  6. Step 6: Final answer
    x = 181,519.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.