Home / 109,509.22-151,122.44-61,110.64

Finding the Fourth Proportional to 109,509.22, 151,122.44 and 61,110.64

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Solution

The fourth proportional to 109,509.22, 151,122.44 and 61,110.64 is: 84,332.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,509.22 : 151,122.44 = 61,110.64 : x
  2. Step 2: Convert to fraction form
    109,509.22/151,122.44 = 61,110.64/x
  3. Step 3: Cross multiply
    109,509.22x = 151,122.44 × 61,110.64
  4. Step 4: Simplify right side
    109,509.22x = 9,235,188,343.40
  5. Step 5: Solve for x
    x = 9,235,188,343.40/109,509.22
  6. Step 6: Final answer
    x = 84,332.52

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1.5x scale

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.