Home / 113,127.55-156,080.89-65,363.47

Finding the Fourth Proportional to 113,127.55, 156,080.89 and 65,363.47

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Solution

The fourth proportional to 113,127.55, 156,080.89 and 65,363.47 is: 90,181.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,127.55 : 156,080.89 = 65,363.47 : x
  2. Step 2: Convert to fraction form
    113,127.55/156,080.89 = 65,363.47/x
  3. Step 3: Cross multiply
    113,127.55x = 156,080.89 × 65,363.47
  4. Step 4: Simplify right side
    113,127.55x = 10,201,988,571.09
  5. Step 5: Solve for x
    x = 10,201,988,571.09/113,127.55
  6. Step 6: Final answer
    x = 90,181.29

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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.