Home / 109,513.94-151,128.93-61,115.35

Finding the Fourth Proportional to 109,513.94, 151,128.93 and 61,115.35

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Solution

The fourth proportional to 109,513.94, 151,128.93 and 61,115.35 is: 84,339.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,513.94 : 151,128.93 = 61,115.35 : x
  2. Step 2: Convert to fraction form
    109,513.94/151,128.93 = 61,115.35/x
  3. Step 3: Cross multiply
    109,513.94x = 151,128.93 × 61,115.35
  4. Step 4: Simplify right side
    109,513.94x = 9,236,297,452.08
  5. Step 5: Solve for x
    x = 9,236,297,452.08/109,513.94
  6. Step 6: Final answer
    x = 84,339.01

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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.