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Finding the Fourth Proportional to 101,068.40, 151,602.60 and 71,543.90

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Solution

The fourth proportional to 101,068.40, 151,602.60 and 71,543.90 is: 107,315.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,068.40 : 151,602.60 = 71,543.90 : x
  2. Step 2: Convert to fraction form
    101,068.40/151,602.60 = 71,543.90/x
  3. Step 3: Cross multiply
    101,068.40x = 151,602.60 × 71,543.90
  4. Step 4: Simplify right side
    101,068.40x = 10,846,241,254.14
  5. Step 5: Solve for x
    x = 10,846,241,254.14/101,068.40
  6. Step 6: Final answer
    x = 107,315.85

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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.