Home / 109,656.99-151,323.53-61,914.78

Finding the Fourth Proportional to 109,656.99, 151,323.53 and 61,914.78

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Solution

The fourth proportional to 109,656.99, 151,323.53 and 61,914.78 is: 85,440.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,656.99 : 151,323.53 = 61,914.78 : x
  2. Step 2: Convert to fraction form
    109,656.99/151,323.53 = 61,914.78/x
  3. Step 3: Cross multiply
    109,656.99x = 151,323.53 × 61,914.78
  4. Step 4: Simplify right side
    109,656.99x = 9,369,162,759.20
  5. Step 5: Solve for x
    x = 9,369,162,759.20/109,656.99
  6. Step 6: Final answer
    x = 85,440.63

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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.