Home / 203,500.85-280,831.17-112,870.69

Finding the Fourth Proportional to 203,500.85, 280,831.17 and 112,870.69

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Solution

The fourth proportional to 203,500.85, 280,831.17 and 112,870.69 is: 155,761.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,500.85 : 280,831.17 = 112,870.69 : x
  2. Step 2: Convert to fraction form
    203,500.85/280,831.17 = 112,870.69/x
  3. Step 3: Cross multiply
    203,500.85x = 280,831.17 × 112,870.69
  4. Step 4: Simplify right side
    203,500.85x = 31,697,605,962.90
  5. Step 5: Solve for x
    x = 31,697,605,962.90/203,500.85
  6. Step 6: Final answer
    x = 155,761.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.