Home / 113,306.40-156,351.60-86,466.24

Finding the Fourth Proportional to 113,306.40, 156,351.60 and 86,466.24

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Solution

The fourth proportional to 113,306.40, 156,351.60 and 86,466.24 is: 119,314.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,306.40 : 156,351.60 = 86,466.24 : x
  2. Step 2: Convert to fraction form
    113,306.40/156,351.60 = 86,466.24/x
  3. Step 3: Cross multiply
    113,306.40x = 156,351.60 × 86,466.24
  4. Step 4: Simplify right side
    113,306.40x = 13,519,134,969.98
  5. Step 5: Solve for x
    x = 13,519,134,969.98/113,306.40
  6. Step 6: Final answer
    x = 119,314.84

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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.