Home / 91,111.80-136,667.70-82,254.45

Finding the Fourth Proportional to 91,111.80, 136,667.70 and 82,254.45

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Solution

The fourth proportional to 91,111.80, 136,667.70 and 82,254.45 is: 123,381.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,111.80 : 136,667.70 = 82,254.45 : x
  2. Step 2: Convert to fraction form
    91,111.80/136,667.70 = 82,254.45/x
  3. Step 3: Cross multiply
    91,111.80x = 136,667.70 × 82,254.45
  4. Step 4: Simplify right side
    91,111.80x = 11,241,526,496.27
  5. Step 5: Solve for x
    x = 11,241,526,496.27/91,111.80
  6. Step 6: Final answer
    x = 123,381.68

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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.