Home / 162,566.24-243,627.76-78,320.28

Finding the Fourth Proportional to 162,566.24, 243,627.76 and 78,320.28

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Solution

The fourth proportional to 162,566.24, 243,627.76 and 78,320.28 is: 117,373.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,566.24 : 243,627.76 = 78,320.28 : x
  2. Step 2: Convert to fraction form
    162,566.24/243,627.76 = 78,320.28/x
  3. Step 3: Cross multiply
    162,566.24x = 243,627.76 × 78,320.28
  4. Step 4: Simplify right side
    162,566.24x = 19,080,994,378.97
  5. Step 5: Solve for x
    x = 19,080,994,378.97/162,566.24
  6. Step 6: Final answer
    x = 117,373.66

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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.