Home / 105,610.32-158,021.76-104,429.28

Finding the Fourth Proportional to 105,610.32, 158,021.76 and 104,429.28

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Solution

The fourth proportional to 105,610.32, 158,021.76 and 104,429.28 is: 156,254.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,610.32 : 158,021.76 = 104,429.28 : x
  2. Step 2: Convert to fraction form
    105,610.32/158,021.76 = 104,429.28/x
  3. Step 3: Cross multiply
    105,610.32x = 158,021.76 × 104,429.28
  4. Step 4: Simplify right side
    105,610.32x = 16,502,098,621.13
  5. Step 5: Solve for x
    x = 16,502,098,621.13/105,610.32
  6. Step 6: Final answer
    x = 156,254.60

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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.