Home / 121,921.69-182,888.66-38,822.17

Finding the Fourth Proportional to 121,921.69, 182,888.66 and 38,822.17

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Solution

The fourth proportional to 121,921.69, 182,888.66 and 38,822.17 is: 58,235.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,921.69 : 182,888.66 = 38,822.17 : x
  2. Step 2: Convert to fraction form
    121,921.69/182,888.66 = 38,822.17/x
  3. Step 3: Cross multiply
    121,921.69x = 182,888.66 × 38,822.17
  4. Step 4: Simplify right side
    121,921.69x = 7,100,134,649.59
  5. Step 5: Solve for x
    x = 7,100,134,649.59/121,921.69
  6. Step 6: Final answer
    x = 58,235.21

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1.5x scale

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.