Home / 126,568.32-189,872.16-42,302.40

Finding the Fourth Proportional to 126,568.32, 189,872.16 and 42,302.40

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Solution

The fourth proportional to 126,568.32, 189,872.16 and 42,302.40 is: 63,460.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,568.32 : 189,872.16 = 42,302.40 : x
  2. Step 2: Convert to fraction form
    126,568.32/189,872.16 = 42,302.40/x
  3. Step 3: Cross multiply
    126,568.32x = 189,872.16 × 42,302.40
  4. Step 4: Simplify right side
    126,568.32x = 8,032,048,061.18
  5. Step 5: Solve for x
    x = 8,032,048,061.18/126,568.32
  6. Step 6: Final answer
    x = 63,460.18

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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.