Home / 115,036.33-158,725.73-72,570.25

Finding the Fourth Proportional to 115,036.33, 158,725.73 and 72,570.25

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Solution

The fourth proportional to 115,036.33, 158,725.73 and 72,570.25 is: 100,131.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,036.33 : 158,725.73 = 72,570.25 : x
  2. Step 2: Convert to fraction form
    115,036.33/158,725.73 = 72,570.25/x
  3. Step 3: Cross multiply
    115,036.33x = 158,725.73 × 72,570.25
  4. Step 4: Simplify right side
    115,036.33x = 11,518,766,088.96
  5. Step 5: Solve for x
    x = 11,518,766,088.96/115,036.33
  6. Step 6: Final answer
    x = 100,131.55

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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.