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Finding the Fourth Proportional to 101,479.76, 152,220.64 and 45,322.72

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Solution

The fourth proportional to 101,479.76, 152,220.64 and 45,322.72 is: 67,984.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,479.76 : 152,220.64 = 45,322.72 : x
  2. Step 2: Convert to fraction form
    101,479.76/152,220.64 = 45,322.72/x
  3. Step 3: Cross multiply
    101,479.76x = 152,220.64 × 45,322.72
  4. Step 4: Simplify right side
    101,479.76x = 6,899,053,444.94
  5. Step 5: Solve for x
    x = 6,899,053,444.94/101,479.76
  6. Step 6: Final answer
    x = 67,984.53

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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.