Home / 105,339.20-157,752.80-55,982.40

Finding the Fourth Proportional to 105,339.20, 157,752.80 and 55,982.40

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Solution

The fourth proportional to 105,339.20, 157,752.80 and 55,982.40 is: 83,837.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,339.20 : 157,752.80 = 55,982.40 : x
  2. Step 2: Convert to fraction form
    105,339.20/157,752.80 = 55,982.40/x
  3. Step 3: Cross multiply
    105,339.20x = 157,752.80 × 55,982.40
  4. Step 4: Simplify right side
    105,339.20x = 8,831,380,350.72
  5. Step 5: Solve for x
    x = 8,831,380,350.72/105,339.20
  6. Step 6: Final answer
    x = 83,837.55

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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.