Home / 162,418.23-243,516.48-86,528.12

Finding the Fourth Proportional to 162,418.23, 243,516.48 and 86,528.12

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Solution

The fourth proportional to 162,418.23, 243,516.48 and 86,528.12 is: 129,733.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,418.23 : 243,516.48 = 86,528.12 : x
  2. Step 2: Convert to fraction form
    162,418.23/243,516.48 = 86,528.12/x
  3. Step 3: Cross multiply
    162,418.23x = 243,516.48 × 86,528.12
  4. Step 4: Simplify right side
    162,418.23x = 21,071,021,661.35
  5. Step 5: Solve for x
    x = 21,071,021,661.35/162,418.23
  6. Step 6: Final answer
    x = 129,733.11

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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.