Home / 162,288.48-243,633.18-76,980.90

Finding the Fourth Proportional to 162,288.48, 243,633.18 and 76,980.90

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Solution

The fourth proportional to 162,288.48, 243,633.18 and 76,980.90 is: 115,566.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,288.48 : 243,633.18 = 76,980.90 : x
  2. Step 2: Convert to fraction form
    162,288.48/243,633.18 = 76,980.90/x
  3. Step 3: Cross multiply
    162,288.48x = 243,633.18 × 76,980.90
  4. Step 4: Simplify right side
    162,288.48x = 18,755,101,466.26
  5. Step 5: Solve for x
    x = 18,755,101,466.26/162,288.48
  6. Step 6: Final answer
    x = 115,566.44

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1.5x scale

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.