Home / 158,111.50-236,787.21-90,438.36

Finding the Fourth Proportional to 158,111.50, 236,787.21 and 90,438.36

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Solution

The fourth proportional to 158,111.50, 236,787.21 and 90,438.36 is: 135,440.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,111.50 : 236,787.21 = 90,438.36 : x
  2. Step 2: Convert to fraction form
    158,111.50/236,787.21 = 90,438.36/x
  3. Step 3: Cross multiply
    158,111.50x = 236,787.21 × 90,438.36
  4. Step 4: Simplify right side
    158,111.50x = 21,414,646,941.38
  5. Step 5: Solve for x
    x = 21,414,646,941.38/158,111.50
  6. Step 6: Final answer
    x = 135,440.16

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1.5x scale

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.