Home / 113,881.28-170,724.71-80,496.32

Finding the Fourth Proportional to 113,881.28, 170,724.71 and 80,496.32

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Solution

The fourth proportional to 113,881.28, 170,724.71 and 80,496.32 is: 120,675.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,881.28 : 170,724.71 = 80,496.32 : x
  2. Step 2: Convert to fraction form
    113,881.28/170,724.71 = 80,496.32/x
  3. Step 3: Cross multiply
    113,881.28x = 170,724.71 × 80,496.32
  4. Step 4: Simplify right side
    113,881.28x = 13,742,710,235.68
  5. Step 5: Solve for x
    x = 13,742,710,235.68/113,881.28
  6. Step 6: Final answer
    x = 120,675.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.