Home / 112,335.36-155,047.02-76,610.52

Finding the Fourth Proportional to 112,335.36, 155,047.02 and 76,610.52

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Solution

The fourth proportional to 112,335.36, 155,047.02 and 76,610.52 is: 105,739.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,335.36 : 155,047.02 = 76,610.52 : x
  2. Step 2: Convert to fraction form
    112,335.36/155,047.02 = 76,610.52/x
  3. Step 3: Cross multiply
    112,335.36x = 155,047.02 × 76,610.52
  4. Step 4: Simplify right side
    112,335.36x = 11,878,232,826.65
  5. Step 5: Solve for x
    x = 11,878,232,826.65/112,335.36
  6. Step 6: Final answer
    x = 105,739.04

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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.