Home / 158,211.36-218,322.54-86,592.78

Finding the Fourth Proportional to 158,211.36, 218,322.54 and 86,592.78

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Solution

The fourth proportional to 158,211.36, 218,322.54 and 86,592.78 is: 119,493.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,211.36 : 218,322.54 = 86,592.78 : x
  2. Step 2: Convert to fraction form
    158,211.36/218,322.54 = 86,592.78/x
  3. Step 3: Cross multiply
    158,211.36x = 218,322.54 × 86,592.78
  4. Step 4: Simplify right side
    158,211.36x = 18,905,155,675.26
  5. Step 5: Solve for x
    x = 18,905,155,675.26/158,211.36
  6. Step 6: Final answer
    x = 119,493.04

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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.