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Finding the Fourth Proportional to 105,752.40, 158,801.40 and 70,846.80

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Solution

The fourth proportional to 105,752.40, 158,801.40 and 70,846.80 is: 106,385.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,752.40 : 158,801.40 = 70,846.80 : x
  2. Step 2: Convert to fraction form
    105,752.40/158,801.40 = 70,846.80/x
  3. Step 3: Cross multiply
    105,752.40x = 158,801.40 × 70,846.80
  4. Step 4: Simplify right side
    105,752.40x = 11,250,571,025.52
  5. Step 5: Solve for x
    x = 11,250,571,025.52/105,752.40
  6. Step 6: Final answer
    x = 106,385.96

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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.