Home / 121,128,301.80-181,692,452.70-88,604,112.60

Finding the Fourth Proportional to 121,128,301.80, 181,692,452.70 and 88,604,112.60

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Solution

The fourth proportional to 121,128,301.80, 181,692,452.70 and 88,604,112.60 is: 132,906,168.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,128,301.80 : 181,692,452.70 = 88,604,112.60 : x
  2. Step 2: Convert to fraction form
    121,128,301.80/181,692,452.70 = 88,604,112.60/x
  3. Step 3: Cross multiply
    121,128,301.80x = 181,692,452.70 × 88,604,112.60
  4. Step 4: Simplify right side
    121,128,301.80x = 16,098,698,537,600,972
  5. Step 5: Solve for x
    x = 16,098,698,537,600,972/121,128,301.80
  6. Step 6: Final answer
    x = 132,906,168.90

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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.