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Finding the Fourth Proportional to 145,751.47, 218,552.47 and 66,797.13

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Solution

The fourth proportional to 145,751.47, 218,552.47 and 66,797.13 is: 100,161.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,751.47 : 218,552.47 = 66,797.13 : x
  2. Step 2: Convert to fraction form
    145,751.47/218,552.47 = 66,797.13/x
  3. Step 3: Cross multiply
    145,751.47x = 218,552.47 × 66,797.13
  4. Step 4: Simplify right side
    145,751.47x = 14,598,677,750.41
  5. Step 5: Solve for x
    x = 14,598,677,750.41/145,751.47
  6. Step 6: Final answer
    x = 100,161.44

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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.