Home / 207,983.24-312,007.50-89,688.20

Finding the Fourth Proportional to 207,983.24, 312,007.50 and 89,688.20

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Solution

The fourth proportional to 207,983.24, 312,007.50 and 89,688.20 is: 134,546.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,983.24 : 312,007.50 = 89,688.20 : x
  2. Step 2: Convert to fraction form
    207,983.24/312,007.50 = 89,688.20/x
  3. Step 3: Cross multiply
    207,983.24x = 312,007.50 × 89,688.20
  4. Step 4: Simplify right side
    207,983.24x = 27,983,391,061.50
  5. Step 5: Solve for x
    x = 27,983,391,061.50/207,983.24
  6. Step 6: Final answer
    x = 134,546.38

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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.