Home / 162,193.10-243,341.69-77,959.36

Finding the Fourth Proportional to 162,193.10, 243,341.69 and 77,959.36

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Solution

The fourth proportional to 162,193.10, 243,341.69 and 77,959.36 is: 116,964.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,193.10 : 243,341.69 = 77,959.36 : x
  2. Step 2: Convert to fraction form
    162,193.10/243,341.69 = 77,959.36/x
  3. Step 3: Cross multiply
    162,193.10x = 243,341.69 × 77,959.36
  4. Step 4: Simplify right side
    162,193.10x = 18,970,761,415.57
  5. Step 5: Solve for x
    x = 18,970,761,415.57/162,193.10
  6. Step 6: Final answer
    x = 116,964.05

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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.