Home / 82,254.48-122,659.44-81,506.04

Finding the Fourth Proportional to 82,254.48, 122,659.44 and 81,506.04

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Solution

The fourth proportional to 82,254.48, 122,659.44 and 81,506.04 is: 121,543.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,254.48 : 122,659.44 = 81,506.04 : x
  2. Step 2: Convert to fraction form
    82,254.48/122,659.44 = 81,506.04/x
  3. Step 3: Cross multiply
    82,254.48x = 122,659.44 × 81,506.04
  4. Step 4: Simplify right side
    82,254.48x = 9,997,485,223.02
  5. Step 5: Solve for x
    x = 9,997,485,223.02/82,254.48
  6. Step 6: Final answer
    x = 121,543.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.