Home / 113,253.44-156,161.34-72,363.54

Finding the Fourth Proportional to 113,253.44, 156,161.34 and 72,363.54

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Solution

The fourth proportional to 113,253.44, 156,161.34 and 72,363.54 is: 99,779.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,253.44 : 156,161.34 = 72,363.54 : x
  2. Step 2: Convert to fraction form
    113,253.44/156,161.34 = 72,363.54/x
  3. Step 3: Cross multiply
    113,253.44x = 156,161.34 × 72,363.54
  4. Step 4: Simplify right side
    113,253.44x = 11,300,387,373.54
  5. Step 5: Solve for x
    x = 11,300,387,373.54/113,253.44
  6. Step 6: Final answer
    x = 99,779.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.