Home / 84,833.12-127,845.51-76,410.18

Finding the Fourth Proportional to 84,833.12, 127,845.51 and 76,410.18

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Solution

The fourth proportional to 84,833.12, 127,845.51 and 76,410.18 is: 115,151.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,833.12 : 127,845.51 = 76,410.18 : x
  2. Step 2: Convert to fraction form
    84,833.12/127,845.51 = 76,410.18/x
  3. Step 3: Cross multiply
    84,833.12x = 127,845.51 × 76,410.18
  4. Step 4: Simplify right side
    84,833.12x = 9,768,698,144.75
  5. Step 5: Solve for x
    x = 9,768,698,144.75/84,833.12
  6. Step 6: Final answer
    x = 115,151.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.