Home / 113,714.16-170,396.28-66,915.60

Finding the Fourth Proportional to 113,714.16, 170,396.28 and 66,915.60

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Solution

The fourth proportional to 113,714.16, 170,396.28 and 66,915.60 is: 100,270.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,714.16 : 170,396.28 = 66,915.60 : x
  2. Step 2: Convert to fraction form
    113,714.16/170,396.28 = 66,915.60/x
  3. Step 3: Cross multiply
    113,714.16x = 170,396.28 × 66,915.60
  4. Step 4: Simplify right side
    113,714.16x = 11,402,169,313.97
  5. Step 5: Solve for x
    x = 11,402,169,313.97/113,714.16
  6. Step 6: Final answer
    x = 100,270.44

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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.