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Finding the Fourth Proportional to 158,937.97, 219,338.27 and 87,322.63

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Solution

The fourth proportional to 158,937.97, 219,338.27 and 87,322.63 is: 120,507.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,937.97 : 219,338.27 = 87,322.63 : x
  2. Step 2: Convert to fraction form
    158,937.97/219,338.27 = 87,322.63/x
  3. Step 3: Cross multiply
    158,937.97x = 219,338.27 × 87,322.63
  4. Step 4: Simplify right side
    158,937.97x = 19,153,194,596.05
  5. Step 5: Solve for x
    x = 19,153,194,596.05/158,937.97
  6. Step 6: Final answer
    x = 120,507.36

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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.