Home / 158,113.29-236,789.93-90,440.19

Finding the Fourth Proportional to 158,113.29, 236,789.93 and 90,440.19

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Solution

The fourth proportional to 158,113.29, 236,789.93 and 90,440.19 is: 135,442.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,113.29 : 236,789.93 = 90,440.19 : x
  2. Step 2: Convert to fraction form
    158,113.29/236,789.93 = 90,440.19/x
  3. Step 3: Cross multiply
    158,113.29x = 236,789.93 × 90,440.19
  4. Step 4: Simplify right side
    158,113.29x = 21,415,326,485.39
  5. Step 5: Solve for x
    x = 21,415,326,485.39/158,113.29
  6. Step 6: Final answer
    x = 135,442.92

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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.