Home / 121,014.80-181,306.20-58,547.60

Finding the Fourth Proportional to 121,014.80, 181,306.20 and 58,547.60

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Solution

The fourth proportional to 121,014.80, 181,306.20 and 58,547.60 is: 87,716.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,014.80 : 181,306.20 = 58,547.60 : x
  2. Step 2: Convert to fraction form
    121,014.80/181,306.20 = 58,547.60/x
  3. Step 3: Cross multiply
    121,014.80x = 181,306.20 × 58,547.60
  4. Step 4: Simplify right side
    121,014.80x = 10,615,042,875.12
  5. Step 5: Solve for x
    x = 10,615,042,875.12/121,014.80
  6. Step 6: Final answer
    x = 87,716.90

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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.