Home / 121,289.60-181,856.16-51,150.08

Finding the Fourth Proportional to 121,289.60, 181,856.16 and 51,150.08

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Solution

The fourth proportional to 121,289.60, 181,856.16 and 51,150.08 is: 76,692.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,289.60 : 181,856.16 = 51,150.08 : x
  2. Step 2: Convert to fraction form
    121,289.60/181,856.16 = 51,150.08/x
  3. Step 3: Cross multiply
    121,289.60x = 181,856.16 × 51,150.08
  4. Step 4: Simplify right side
    121,289.60x = 9,301,957,132.49
  5. Step 5: Solve for x
    x = 9,301,957,132.49/121,289.60
  6. Step 6: Final answer
    x = 76,692.12

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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.