Home / 115,020.27-158,671.98-99,077.04

Finding the Fourth Proportional to 115,020.27, 158,671.98 and 99,077.04

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Solution

The fourth proportional to 115,020.27, 158,671.98 and 99,077.04 is: 136,678.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,020.27 : 158,671.98 = 99,077.04 : x
  2. Step 2: Convert to fraction form
    115,020.27/158,671.98 = 99,077.04/x
  3. Step 3: Cross multiply
    115,020.27x = 158,671.98 × 99,077.04
  4. Step 4: Simplify right side
    115,020.27x = 15,720,750,109.34
  5. Step 5: Solve for x
    x = 15,720,750,109.34/115,020.27
  6. Step 6: Final answer
    x = 136,678.08

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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.