Home / 345,085.16-517,451.58-157,936.20

Finding the Fourth Proportional to 345,085.16, 517,451.58 and 157,936.20

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Solution

The fourth proportional to 345,085.16, 517,451.58 and 157,936.20 is: 236,823.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,085.16 : 517,451.58 = 157,936.20 : x
  2. Step 2: Convert to fraction form
    345,085.16/517,451.58 = 157,936.20/x
  3. Step 3: Cross multiply
    345,085.16x = 517,451.58 × 157,936.20
  4. Step 4: Simplify right side
    345,085.16x = 81,724,336,229.20
  5. Step 5: Solve for x
    x = 81,724,336,229.20/345,085.16
  6. Step 6: Final answer
    x = 236,823.68

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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.