Home / 123,421.20-185,131.80-44,547.60

Finding the Fourth Proportional to 123,421.20, 185,131.80 and 44,547.60

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Solution

The fourth proportional to 123,421.20, 185,131.80 and 44,547.60 is: 66,821.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,421.20 : 185,131.80 = 44,547.60 : x
  2. Step 2: Convert to fraction form
    123,421.20/185,131.80 = 44,547.60/x
  3. Step 3: Cross multiply
    123,421.20x = 185,131.80 × 44,547.60
  4. Step 4: Simplify right side
    123,421.20x = 8,247,177,373.68
  5. Step 5: Solve for x
    x = 8,247,177,373.68/123,421.20
  6. Step 6: Final answer
    x = 66,821.40

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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.