Home / 121,301.40-181,952.10-89,808.60

Finding the Fourth Proportional to 121,301.40, 181,952.10 and 89,808.60

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Solution

The fourth proportional to 121,301.40, 181,952.10 and 89,808.60 is: 134,712.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,301.40 : 181,952.10 = 89,808.60 : x
  2. Step 2: Convert to fraction form
    121,301.40/181,952.10 = 89,808.60/x
  3. Step 3: Cross multiply
    121,301.40x = 181,952.10 × 89,808.60
  4. Step 4: Simplify right side
    121,301.40x = 16,340,863,368.06
  5. Step 5: Solve for x
    x = 16,340,863,368.06/121,301.40
  6. Step 6: Final answer
    x = 134,712.90

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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.