Home / 112,299.32-154,982.54-64,569.08

Finding the Fourth Proportional to 112,299.32, 154,982.54 and 64,569.08

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Solution

The fourth proportional to 112,299.32, 154,982.54 and 64,569.08 is: 89,110.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,299.32 : 154,982.54 = 64,569.08 : x
  2. Step 2: Convert to fraction form
    112,299.32/154,982.54 = 64,569.08/x
  3. Step 3: Cross multiply
    112,299.32x = 154,982.54 × 64,569.08
  4. Step 4: Simplify right side
    112,299.32x = 10,007,080,023.86
  5. Step 5: Solve for x
    x = 10,007,080,023.86/112,299.32
  6. Step 6: Final answer
    x = 89,110.78

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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.