Home / 88,283.88-121,732.80-82,685.16

Finding the Fourth Proportional to 88,283.88, 121,732.80 and 82,685.16

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Solution

The fourth proportional to 88,283.88, 121,732.80 and 82,685.16 is: 114,012.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,283.88 : 121,732.80 = 82,685.16 : x
  2. Step 2: Convert to fraction form
    88,283.88/121,732.80 = 82,685.16/x
  3. Step 3: Cross multiply
    88,283.88x = 121,732.80 × 82,685.16
  4. Step 4: Simplify right side
    88,283.88x = 10,065,496,045.25
  5. Step 5: Solve for x
    x = 10,065,496,045.25/88,283.88
  6. Step 6: Final answer
    x = 114,012.84

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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.