Home / 115,144.90-158,897.57-64,157.42

Finding the Fourth Proportional to 115,144.90, 158,897.57 and 64,157.42

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Solution

The fourth proportional to 115,144.90, 158,897.57 and 64,157.42 is: 88,535.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,144.90 : 158,897.57 = 64,157.42 : x
  2. Step 2: Convert to fraction form
    115,144.90/158,897.57 = 64,157.42/x
  3. Step 3: Cross multiply
    115,144.90x = 158,897.57 × 64,157.42
  4. Step 4: Simplify right side
    115,144.90x = 10,194,458,211.93
  5. Step 5: Solve for x
    x = 10,194,458,211.93/115,144.90
  6. Step 6: Final answer
    x = 88,535.91

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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.