Home / 135,890.19-203,835.15-89,132.13

Finding the Fourth Proportional to 135,890.19, 203,835.15 and 89,132.13

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Solution

The fourth proportional to 135,890.19, 203,835.15 and 89,132.13 is: 133,698.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,890.19 : 203,835.15 = 89,132.13 : x
  2. Step 2: Convert to fraction form
    135,890.19/203,835.15 = 89,132.13/x
  3. Step 3: Cross multiply
    135,890.19x = 203,835.15 × 89,132.13
  4. Step 4: Simplify right side
    135,890.19x = 18,168,261,088.37
  5. Step 5: Solve for x
    x = 18,168,261,088.37/135,890.19
  6. Step 6: Final answer
    x = 133,698.11

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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.