Home / 109,105.80-150,557.58-61,349.64

Finding the Fourth Proportional to 109,105.80, 150,557.58 and 61,349.64

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Solution

The fourth proportional to 109,105.80, 150,557.58 and 61,349.64 is: 84,657.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,105.80 : 150,557.58 = 61,349.64 : x
  2. Step 2: Convert to fraction form
    109,105.80/150,557.58 = 61,349.64/x
  3. Step 3: Cross multiply
    109,105.80x = 150,557.58 × 61,349.64
  4. Step 4: Simplify right side
    109,105.80x = 9,236,653,332.27
  5. Step 5: Solve for x
    x = 9,236,653,332.27/109,105.80
  6. Step 6: Final answer
    x = 84,657.77

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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.