Home / 134,516.32-185,433.28-86,111.12

Finding the Fourth Proportional to 134,516.32, 185,433.28 and 86,111.12

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Solution

The fourth proportional to 134,516.32, 185,433.28 and 86,111.12 is: 118,705.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,516.32 : 185,433.28 = 86,111.12 : x
  2. Step 2: Convert to fraction form
    134,516.32/185,433.28 = 86,111.12/x
  3. Step 3: Cross multiply
    134,516.32x = 185,433.28 × 86,111.12
  4. Step 4: Simplify right side
    134,516.32x = 15,967,867,426.07
  5. Step 5: Solve for x
    x = 15,967,867,426.07/134,516.32
  6. Step 6: Final answer
    x = 118,705.80

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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.