Home / 109,535.90-151,054.72-66,522.39

Finding the Fourth Proportional to 109,535.90, 151,054.72 and 66,522.39

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Solution

The fourth proportional to 109,535.90, 151,054.72 and 66,522.39 is: 91,737.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,535.90 : 151,054.72 = 66,522.39 : x
  2. Step 2: Convert to fraction form
    109,535.90/151,054.72 = 66,522.39/x
  3. Step 3: Cross multiply
    109,535.90x = 151,054.72 × 66,522.39
  4. Step 4: Simplify right side
    109,535.90x = 10,048,521,061.45
  5. Step 5: Solve for x
    x = 10,048,521,061.45/109,535.90
  6. Step 6: Final answer
    x = 91,737.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.