Home / 162,003.20-242,895.45-86,114.30

Finding the Fourth Proportional to 162,003.20, 242,895.45 and 86,114.30

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Solution

The fourth proportional to 162,003.20, 242,895.45 and 86,114.30 is: 129,113.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,003.20 : 242,895.45 = 86,114.30 : x
  2. Step 2: Convert to fraction form
    162,003.20/242,895.45 = 86,114.30/x
  3. Step 3: Cross multiply
    162,003.20x = 242,895.45 × 86,114.30
  4. Step 4: Simplify right side
    162,003.20x = 20,916,771,649.94
  5. Step 5: Solve for x
    x = 20,916,771,649.94/162,003.20
  6. Step 6: Final answer
    x = 129,113.32

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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.