Home / 153,034.05-229,356.20-86,511.18

Finding the Fourth Proportional to 153,034.05, 229,356.20 and 86,511.18

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Solution

The fourth proportional to 153,034.05, 229,356.20 and 86,511.18 is: 129,656.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,034.05 : 229,356.20 = 86,511.18 : x
  2. Step 2: Convert to fraction form
    153,034.05/229,356.20 = 86,511.18/x
  3. Step 3: Cross multiply
    153,034.05x = 229,356.20 × 86,511.18
  4. Step 4: Simplify right side
    153,034.05x = 19,841,875,069.76
  5. Step 5: Solve for x
    x = 19,841,875,069.76/153,034.05
  6. Step 6: Final answer
    x = 129,656.60

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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.