Home / 144,120.54-215,922.02-87,931.65

Finding the Fourth Proportional to 144,120.54, 215,922.02 and 87,931.65

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Solution

The fourth proportional to 144,120.54, 215,922.02 and 87,931.65 is: 131,739.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,120.54 : 215,922.02 = 87,931.65 : x
  2. Step 2: Convert to fraction form
    144,120.54/215,922.02 = 87,931.65/x
  3. Step 3: Cross multiply
    144,120.54x = 215,922.02 × 87,931.65
  4. Step 4: Simplify right side
    144,120.54x = 18,986,379,050.27
  5. Step 5: Solve for x
    x = 18,986,379,050.27/144,120.54
  6. Step 6: Final answer
    x = 131,739.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.