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Finding the Fourth Proportional to 158,924.76, 219,315.36 and 86,327.07

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Solution

The fourth proportional to 158,924.76, 219,315.36 and 86,327.07 is: 119,130.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,924.76 : 219,315.36 = 86,327.07 : x
  2. Step 2: Convert to fraction form
    158,924.76/219,315.36 = 86,327.07/x
  3. Step 3: Cross multiply
    158,924.76x = 219,315.36 × 86,327.07
  4. Step 4: Simplify right side
    158,924.76x = 18,932,852,434.80
  5. Step 5: Solve for x
    x = 18,932,852,434.80/158,924.76
  6. Step 6: Final answer
    x = 119,130.92

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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.