Home / 123,725.40-170,635.71-83,386.18

Finding the Fourth Proportional to 123,725.40, 170,635.71 and 83,386.18

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Solution

The fourth proportional to 123,725.40, 170,635.71 and 83,386.18 is: 115,001.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,725.40 : 170,635.71 = 83,386.18 : x
  2. Step 2: Convert to fraction form
    123,725.40/170,635.71 = 83,386.18/x
  3. Step 3: Cross multiply
    123,725.40x = 170,635.71 × 83,386.18
  4. Step 4: Simplify right side
    123,725.40x = 14,228,660,028.49
  5. Step 5: Solve for x
    x = 14,228,660,028.49/123,725.40
  6. Step 6: Final answer
    x = 115,001.93

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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.