Home / 105,319.28-157,980.96-49,144.11

Finding the Fourth Proportional to 105,319.28, 157,980.96 and 49,144.11

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Solution

The fourth proportional to 105,319.28, 157,980.96 and 49,144.11 is: 73,717.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,319.28 : 157,980.96 = 49,144.11 : x
  2. Step 2: Convert to fraction form
    105,319.28/157,980.96 = 49,144.11/x
  3. Step 3: Cross multiply
    105,319.28x = 157,980.96 × 49,144.11
  4. Step 4: Simplify right side
    105,319.28x = 7,763,833,676.15
  5. Step 5: Solve for x
    x = 7,763,833,676.15/105,319.28
  6. Step 6: Final answer
    x = 73,717.12

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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.