Home / 91,202.37-136,523.27-77,750.30

Finding the Fourth Proportional to 91,202.37, 136,523.27 and 77,750.30

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Solution

The fourth proportional to 91,202.37, 136,523.27 and 77,750.30 is: 116,386.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,202.37 : 136,523.27 = 77,750.30 : x
  2. Step 2: Convert to fraction form
    91,202.37/136,523.27 = 77,750.30/x
  3. Step 3: Cross multiply
    91,202.37x = 136,523.27 × 77,750.30
  4. Step 4: Simplify right side
    91,202.37x = 10,614,724,128.11
  5. Step 5: Solve for x
    x = 10,614,724,128.11/91,202.37
  6. Step 6: Final answer
    x = 116,386.49

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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.