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Finding the Fourth Proportional to 158,265.66, 218,406.66 and 86,650.23

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Solution

The fourth proportional to 158,265.66, 218,406.66 and 86,650.23 is: 119,577.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,265.66 : 218,406.66 = 86,650.23 : x
  2. Step 2: Convert to fraction form
    158,265.66/218,406.66 = 86,650.23/x
  3. Step 3: Cross multiply
    158,265.66x = 218,406.66 × 86,650.23
  4. Step 4: Simplify right side
    158,265.66x = 18,924,987,322.53
  5. Step 5: Solve for x
    x = 18,924,987,322.53/158,265.66
  6. Step 6: Final answer
    x = 119,577.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.