Home / 157,811.76-236,711.16-87,646.32

Finding the Fourth Proportional to 157,811.76, 236,711.16 and 87,646.32

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Solution

The fourth proportional to 157,811.76, 236,711.16 and 87,646.32 is: 131,465.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,811.76 : 236,711.16 = 87,646.32 : x
  2. Step 2: Convert to fraction form
    157,811.76/236,711.16 = 87,646.32/x
  3. Step 3: Cross multiply
    157,811.76x = 236,711.16 × 87,646.32
  4. Step 4: Simplify right side
    157,811.76x = 20,746,862,076.93
  5. Step 5: Solve for x
    x = 20,746,862,076.93/157,811.76
  6. Step 6: Final answer
    x = 131,465.88

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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.