Home / 165,031.55-247,631.73-78,575.26

Finding the Fourth Proportional to 165,031.55, 247,631.73 and 78,575.26

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Solution

The fourth proportional to 165,031.55, 247,631.73 and 78,575.26 is: 117,903.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,031.55 : 247,631.73 = 78,575.26 : x
  2. Step 2: Convert to fraction form
    165,031.55/247,631.73 = 78,575.26/x
  3. Step 3: Cross multiply
    165,031.55x = 247,631.73 × 78,575.26
  4. Step 4: Simplify right side
    165,031.55x = 19,457,727,569.00
  5. Step 5: Solve for x
    x = 19,457,727,569.00/165,031.55
  6. Step 6: Final answer
    x = 117,903.08

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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.