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Finding the Fourth Proportional to 105,345.20, 158,104.20 and 101,889.20

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Solution

The fourth proportional to 105,345.20, 158,104.20 and 101,889.20 is: 152,917.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,345.20 : 158,104.20 = 101,889.20 : x
  2. Step 2: Convert to fraction form
    105,345.20/158,104.20 = 101,889.20/x
  3. Step 3: Cross multiply
    105,345.20x = 158,104.20 × 101,889.20
  4. Step 4: Simplify right side
    105,345.20x = 16,109,110,454.64
  5. Step 5: Solve for x
    x = 16,109,110,454.64/105,345.20
  6. Step 6: Final answer
    x = 152,917.37

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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.