Home / 156,987.21-216,660.62-88,095.65

Finding the Fourth Proportional to 156,987.21, 216,660.62 and 88,095.65

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Solution

The fourth proportional to 156,987.21, 216,660.62 and 88,095.65 is: 121,582.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,987.21 : 216,660.62 = 88,095.65 : x
  2. Step 2: Convert to fraction form
    156,987.21/216,660.62 = 88,095.65/x
  3. Step 3: Cross multiply
    156,987.21x = 216,660.62 × 88,095.65
  4. Step 4: Simplify right side
    156,987.21x = 19,086,858,503.96
  5. Step 5: Solve for x
    x = 19,086,858,503.96/156,987.21
  6. Step 6: Final answer
    x = 121,582.25

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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.