Home / 109,740.32-151,461.29-71,025.86

Finding the Fourth Proportional to 109,740.32, 151,461.29 and 71,025.86

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Solution

The fourth proportional to 109,740.32, 151,461.29 and 71,025.86 is: 98,028.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,740.32 : 151,461.29 = 71,025.86 : x
  2. Step 2: Convert to fraction form
    109,740.32/151,461.29 = 71,025.86/x
  3. Step 3: Cross multiply
    109,740.32x = 151,461.29 × 71,025.86
  4. Step 4: Simplify right side
    109,740.32x = 10,757,668,935.18
  5. Step 5: Solve for x
    x = 10,757,668,935.18/109,740.32
  6. Step 6: Final answer
    x = 98,028.41

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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.