Home / 113,641.92-156,777.12-68,307.84

Finding the Fourth Proportional to 113,641.92, 156,777.12 and 68,307.84

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Solution

The fourth proportional to 113,641.92, 156,777.12 and 68,307.84 is: 94,235.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,641.92 : 156,777.12 = 68,307.84 : x
  2. Step 2: Convert to fraction form
    113,641.92/156,777.12 = 68,307.84/x
  3. Step 3: Cross multiply
    113,641.92x = 156,777.12 × 68,307.84
  4. Step 4: Simplify right side
    113,641.92x = 10,709,106,428.62
  5. Step 5: Solve for x
    x = 10,709,106,428.62/113,641.92
  6. Step 6: Final answer
    x = 94,235.53

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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.