Home / 261,419.24-392,146.62-83,915.48

Finding the Fourth Proportional to 261,419.24, 392,146.62 and 83,915.48

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Solution

The fourth proportional to 261,419.24, 392,146.62 and 83,915.48 is: 125,878.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,419.24 : 392,146.62 = 83,915.48 : x
  2. Step 2: Convert to fraction form
    261,419.24/392,146.62 = 83,915.48/x
  3. Step 3: Cross multiply
    261,419.24x = 392,146.62 × 83,915.48
  4. Step 4: Simplify right side
    261,419.24x = 32,907,169,886.94
  5. Step 5: Solve for x
    x = 32,907,169,886.94/261,419.24
  6. Step 6: Final answer
    x = 125,878.92

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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.