Home / 133,172.07-199,853.67-90,370.77

Finding the Fourth Proportional to 133,172.07, 199,853.67 and 90,370.77

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Solution

The fourth proportional to 133,172.07, 199,853.67 and 90,370.77 is: 135,621.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,172.07 : 199,853.67 = 90,370.77 : x
  2. Step 2: Convert to fraction form
    133,172.07/199,853.67 = 90,370.77/x
  3. Step 3: Cross multiply
    133,172.07x = 199,853.67 × 90,370.77
  4. Step 4: Simplify right side
    133,172.07x = 18,060,930,045.23
  5. Step 5: Solve for x
    x = 18,060,930,045.23/133,172.07
  6. Step 6: Final answer
    x = 135,621.01

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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.