Home / 147,161.13-203,089.02-86,734.32

Finding the Fourth Proportional to 147,161.13, 203,089.02 and 86,734.32

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Solution

The fourth proportional to 147,161.13, 203,089.02 and 86,734.32 is: 119,697.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,161.13 : 203,089.02 = 86,734.32 : x
  2. Step 2: Convert to fraction form
    147,161.13/203,089.02 = 86,734.32/x
  3. Step 3: Cross multiply
    147,161.13x = 203,089.02 × 86,734.32
  4. Step 4: Simplify right side
    147,161.13x = 17,614,788,049.17
  5. Step 5: Solve for x
    x = 17,614,788,049.17/147,161.13
  6. Step 6: Final answer
    x = 119,697.29

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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.