Home / 126,653.32-189,915.18-67,521.16

Finding the Fourth Proportional to 126,653.32, 189,915.18 and 67,521.16

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Solution

The fourth proportional to 126,653.32, 189,915.18 and 67,521.16 is: 101,247.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,653.32 : 189,915.18 = 67,521.16 : x
  2. Step 2: Convert to fraction form
    126,653.32/189,915.18 = 67,521.16/x
  3. Step 3: Cross multiply
    126,653.32x = 189,915.18 × 67,521.16
  4. Step 4: Simplify right side
    126,653.32x = 12,823,293,255.21
  5. Step 5: Solve for x
    x = 12,823,293,255.21/126,653.32
  6. Step 6: Final answer
    x = 101,247.19

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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.