Home / 109,140.56-150,612.60-61,394.24

Finding the Fourth Proportional to 109,140.56, 150,612.60 and 61,394.24

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Solution

The fourth proportional to 109,140.56, 150,612.60 and 61,394.24 is: 84,723.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,140.56 : 150,612.60 = 61,394.24 : x
  2. Step 2: Convert to fraction form
    109,140.56/150,612.60 = 61,394.24/x
  3. Step 3: Cross multiply
    109,140.56x = 150,612.60 × 61,394.24
  4. Step 4: Simplify right side
    109,140.56x = 9,246,746,111.42
  5. Step 5: Solve for x
    x = 9,246,746,111.42/109,140.56
  6. Step 6: Final answer
    x = 84,723.28

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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.