Home / 136,983.04-189,089.34-122,617.54

Finding the Fourth Proportional to 136,983.04, 189,089.34 and 122,617.54

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Solution

The fourth proportional to 136,983.04, 189,089.34 and 122,617.54 is: 169,259.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,983.04 : 189,089.34 = 122,617.54 : x
  2. Step 2: Convert to fraction form
    136,983.04/189,089.34 = 122,617.54/x
  3. Step 3: Cross multiply
    136,983.04x = 189,089.34 × 122,617.54
  4. Step 4: Simplify right side
    136,983.04x = 23,185,669,711.02
  5. Step 5: Solve for x
    x = 23,185,669,711.02/136,983.04
  6. Step 6: Final answer
    x = 169,259.42

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1.5x scale

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.