Home / 158,110.50-236,785.71-90,437.36

Finding the Fourth Proportional to 158,110.50, 236,785.71 and 90,437.36

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Solution

The fourth proportional to 158,110.50, 236,785.71 and 90,437.36 is: 135,438.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,110.50 : 236,785.71 = 90,437.36 : x
  2. Step 2: Convert to fraction form
    158,110.50/236,785.71 = 90,437.36/x
  3. Step 3: Cross multiply
    158,110.50x = 236,785.71 × 90,437.36
  4. Step 4: Simplify right side
    158,110.50x = 21,414,274,985.26
  5. Step 5: Solve for x
    x = 21,414,274,985.26/158,110.50
  6. Step 6: Final answer
    x = 135,438.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.