Home / 156,007.32-234,009.72-81,088.80

Finding the Fourth Proportional to 156,007.32, 234,009.72 and 81,088.80

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Solution

The fourth proportional to 156,007.32, 234,009.72 and 81,088.80 is: 121,632.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,007.32 : 234,009.72 = 81,088.80 : x
  2. Step 2: Convert to fraction form
    156,007.32/234,009.72 = 81,088.80/x
  3. Step 3: Cross multiply
    156,007.32x = 234,009.72 × 81,088.80
  4. Step 4: Simplify right side
    156,007.32x = 18,975,567,383.14
  5. Step 5: Solve for x
    x = 18,975,567,383.14/156,007.32
  6. Step 6: Final answer
    x = 121,632.55

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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.