Home / 207,915.57-286,923.69-112,422.24

Finding the Fourth Proportional to 207,915.57, 286,923.69 and 112,422.24

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Solution

The fourth proportional to 207,915.57, 286,923.69 and 112,422.24 is: 155,142.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,915.57 : 286,923.69 = 112,422.24 : x
  2. Step 2: Convert to fraction form
    207,915.57/286,923.69 = 112,422.24/x
  3. Step 3: Cross multiply
    207,915.57x = 286,923.69 × 112,422.24
  4. Step 4: Simplify right side
    207,915.57x = 32,256,603,938.87
  5. Step 5: Solve for x
    x = 32,256,603,938.87/207,915.57
  6. Step 6: Final answer
    x = 155,142.80

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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.