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Finding the Fourth Proportional to 145,552.92, 218,255.58 and 66,599.52

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Solution

The fourth proportional to 145,552.92, 218,255.58 and 66,599.52 is: 99,865.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,552.92 : 218,255.58 = 66,599.52 : x
  2. Step 2: Convert to fraction form
    145,552.92/218,255.58 = 66,599.52/x
  3. Step 3: Cross multiply
    145,552.92x = 218,255.58 × 66,599.52
  4. Step 4: Simplify right side
    145,552.92x = 14,535,716,865.32
  5. Step 5: Solve for x
    x = 14,535,716,865.32/145,552.92
  6. Step 6: Final answer
    x = 99,865.51

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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.