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Finding the Fourth Proportional to 115,303.60, 171,809.15 and 102,727

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Solution

The fourth proportional to 115,303.60, 171,809.15 and 102,727 is: 153,069.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,303.60 : 171,809.15 = 102,727 : x
  2. Step 2: Convert to fraction form
    115,303.60/171,809.15 = 102,727/x
  3. Step 3: Cross multiply
    115,303.60x = 171,809.15 × 102,727
  4. Step 4: Simplify right side
    115,303.60x = 17,649,438,552.05
  5. Step 5: Solve for x
    x = 17,649,438,552.05/115,303.60
  6. Step 6: Final answer
    x = 153,069.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.