Home / 121,182.47-181,856.75-42,296.69

Finding the Fourth Proportional to 121,182.47, 181,856.75 and 42,296.69

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Solution

The fourth proportional to 121,182.47, 181,856.75 and 42,296.69 is: 63,474.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,182.47 : 181,856.75 = 42,296.69 : x
  2. Step 2: Convert to fraction form
    121,182.47/181,856.75 = 42,296.69/x
  3. Step 3: Cross multiply
    121,182.47x = 181,856.75 × 42,296.69
  4. Step 4: Simplify right side
    121,182.47x = 7,691,938,579.16
  5. Step 5: Solve for x
    x = 7,691,938,579.16/121,182.47
  6. Step 6: Final answer
    x = 63,474.02

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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.