Home / 123,587.20-185,769.60-121,254.40

Finding the Fourth Proportional to 123,587.20, 185,769.60 and 121,254.40

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Solution

The fourth proportional to 123,587.20, 185,769.60 and 121,254.40 is: 182,263.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,587.20 : 185,769.60 = 121,254.40 : x
  2. Step 2: Convert to fraction form
    123,587.20/185,769.60 = 121,254.40/x
  3. Step 3: Cross multiply
    123,587.20x = 185,769.60 × 121,254.40
  4. Step 4: Simplify right side
    123,587.20x = 22,525,381,386.24
  5. Step 5: Solve for x
    x = 22,525,381,386.24/123,587.20
  6. Step 6: Final answer
    x = 182,263.06

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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.