Home / 153,032.55-229,353.95-86,509.68

Finding the Fourth Proportional to 153,032.55, 229,353.95 and 86,509.68

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Solution

The fourth proportional to 153,032.55, 229,353.95 and 86,509.68 is: 129,654.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,032.55 : 229,353.95 = 86,509.68 : x
  2. Step 2: Convert to fraction form
    153,032.55/229,353.95 = 86,509.68/x
  3. Step 3: Cross multiply
    153,032.55x = 229,353.95 × 86,509.68
  4. Step 4: Simplify right side
    153,032.55x = 19,841,336,388.69
  5. Step 5: Solve for x
    x = 19,841,336,388.69/153,032.55
  6. Step 6: Final answer
    x = 129,654.35

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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.