Home / 123,392.28-185,088.36-40,286.28

Finding the Fourth Proportional to 123,392.28, 185,088.36 and 40,286.28

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Solution

The fourth proportional to 123,392.28, 185,088.36 and 40,286.28 is: 60,429.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,392.28 : 185,088.36 = 40,286.28 : x
  2. Step 2: Convert to fraction form
    123,392.28/185,088.36 = 40,286.28/x
  3. Step 3: Cross multiply
    123,392.28x = 185,088.36 × 40,286.28
  4. Step 4: Simplify right side
    123,392.28x = 7,456,521,495.70
  5. Step 5: Solve for x
    x = 7,456,521,495.70/123,392.28
  6. Step 6: Final answer
    x = 60,429.40

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1.5x scale

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.