Home / 109,553.64-151,171.02-61,804.20

Finding the Fourth Proportional to 109,553.64, 151,171.02 and 61,804.20

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Solution

The fourth proportional to 109,553.64, 151,171.02 and 61,804.20 is: 85,282.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,553.64 : 151,171.02 = 61,804.20 : x
  2. Step 2: Convert to fraction form
    109,553.64/151,171.02 = 61,804.20/x
  3. Step 3: Cross multiply
    109,553.64x = 151,171.02 × 61,804.20
  4. Step 4: Simplify right side
    109,553.64x = 9,343,003,954.28
  5. Step 5: Solve for x
    x = 9,343,003,954.28/109,553.64
  6. Step 6: Final answer
    x = 85,282.46

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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.