Home / 109,176.03-150,665.87-61,431.08

Finding the Fourth Proportional to 109,176.03, 150,665.87 and 61,431.08

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Solution

The fourth proportional to 109,176.03, 150,665.87 and 61,431.08 is: 84,776.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,176.03 : 150,665.87 = 61,431.08 : x
  2. Step 2: Convert to fraction form
    109,176.03/150,665.87 = 61,431.08/x
  3. Step 3: Cross multiply
    109,176.03x = 150,665.87 × 61,431.08
  4. Step 4: Simplify right side
    109,176.03x = 9,255,566,736.57
  5. Step 5: Solve for x
    x = 9,255,566,736.57/109,176.03
  6. Step 6: Final answer
    x = 84,776.54

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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.