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Finding the Fourth Proportional to 113,353.20, 170,029.80 and 101,689.20

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Solution

The fourth proportional to 113,353.20, 170,029.80 and 101,689.20 is: 152,533.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,353.20 : 170,029.80 = 101,689.20 : x
  2. Step 2: Convert to fraction form
    113,353.20/170,029.80 = 101,689.20/x
  3. Step 3: Cross multiply
    113,353.20x = 170,029.80 × 101,689.20
  4. Step 4: Simplify right side
    113,353.20x = 17,290,194,338.16
  5. Step 5: Solve for x
    x = 17,290,194,338.16/113,353.20
  6. Step 6: Final answer
    x = 152,533.80

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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.