Home / 109,533.32-151,171.56-61,791.08

Finding the Fourth Proportional to 109,533.32, 151,171.56 and 61,791.08

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Solution

The fourth proportional to 109,533.32, 151,171.56 and 61,791.08 is: 85,280.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,533.32 : 151,171.56 = 61,791.08 : x
  2. Step 2: Convert to fraction form
    109,533.32/151,171.56 = 61,791.08/x
  3. Step 3: Cross multiply
    109,533.32x = 151,171.56 × 61,791.08
  4. Step 4: Simplify right side
    109,533.32x = 9,341,053,957.68
  5. Step 5: Solve for x
    x = 9,341,053,957.68/109,533.32
  6. Step 6: Final answer
    x = 85,280.48

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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.