Home / 103,842.08-156,088.25-68,530.32

Finding the Fourth Proportional to 103,842.08, 156,088.25 and 68,530.32

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Solution

The fourth proportional to 103,842.08, 156,088.25 and 68,530.32 is: 103,010.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,842.08 : 156,088.25 = 68,530.32 : x
  2. Step 2: Convert to fraction form
    103,842.08/156,088.25 = 68,530.32/x
  3. Step 3: Cross multiply
    103,842.08x = 156,088.25 × 68,530.32
  4. Step 4: Simplify right side
    103,842.08x = 10,696,777,581.56
  5. Step 5: Solve for x
    x = 10,696,777,581.56/103,842.08
  6. Step 6: Final answer
    x = 103,010.05

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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.