Home / 207,974.16-287,004.51-112,480.74

Finding the Fourth Proportional to 207,974.16, 287,004.51 and 112,480.74

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Solution

The fourth proportional to 207,974.16, 287,004.51 and 112,480.74 is: 155,223.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,974.16 : 287,004.51 = 112,480.74 : x
  2. Step 2: Convert to fraction form
    207,974.16/287,004.51 = 112,480.74/x
  3. Step 3: Cross multiply
    207,974.16x = 287,004.51 × 112,480.74
  4. Step 4: Simplify right side
    207,974.16x = 32,282,479,668.14
  5. Step 5: Solve for x
    x = 32,282,479,668.14/207,974.16
  6. Step 6: Final answer
    x = 155,223.51

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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.