Home / 126,212.04-188,299.80-121,617.72

Finding the Fourth Proportional to 126,212.04, 188,299.80 and 121,617.72

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Solution

The fourth proportional to 126,212.04, 188,299.80 and 121,617.72 is: 181,445.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,212.04 : 188,299.80 = 121,617.72 : x
  2. Step 2: Convert to fraction form
    126,212.04/188,299.80 = 121,617.72/x
  3. Step 3: Cross multiply
    126,212.04x = 188,299.80 × 121,617.72
  4. Step 4: Simplify right side
    126,212.04x = 22,900,592,352.46
  5. Step 5: Solve for x
    x = 22,900,592,352.46/126,212.04
  6. Step 6: Final answer
    x = 181,445.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.