Home / 126,953.33-175,115.93-81,690.12

Finding the Fourth Proportional to 126,953.33, 175,115.93 and 81,690.12

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Solution

The fourth proportional to 126,953.33, 175,115.93 and 81,690.12 is: 112,681.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,953.33 : 175,115.93 = 81,690.12 : x
  2. Step 2: Convert to fraction form
    126,953.33/175,115.93 = 81,690.12/x
  3. Step 3: Cross multiply
    126,953.33x = 175,115.93 × 81,690.12
  4. Step 4: Simplify right side
    126,953.33x = 14,305,240,927.16
  5. Step 5: Solve for x
    x = 14,305,240,927.16/126,953.33
  6. Step 6: Final answer
    x = 112,681.10

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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.