Home / 129,918.02-179,410.68-122,842.14

Finding the Fourth Proportional to 129,918.02, 179,410.68 and 122,842.14

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Solution

The fourth proportional to 129,918.02, 179,410.68 and 122,842.14 is: 169,639.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,918.02 : 179,410.68 = 122,842.14 : x
  2. Step 2: Convert to fraction form
    129,918.02/179,410.68 = 122,842.14/x
  3. Step 3: Cross multiply
    129,918.02x = 179,410.68 × 122,842.14
  4. Step 4: Simplify right side
    129,918.02x = 22,039,191,870.06
  5. Step 5: Solve for x
    x = 22,039,191,870.06/129,918.02
  6. Step 6: Final answer
    x = 169,639.22

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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.