Home / 121,507.56-181,960.02-84,105

Finding the Fourth Proportional to 121,507.56, 181,960.02 and 84,105

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Solution

The fourth proportional to 121,507.56, 181,960.02 and 84,105 is: 125,948.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,507.56 : 181,960.02 = 84,105 : x
  2. Step 2: Convert to fraction form
    121,507.56/181,960.02 = 84,105/x
  3. Step 3: Cross multiply
    121,507.56x = 181,960.02 × 84,105
  4. Step 4: Simplify right side
    121,507.56x = 15,303,747,482.10
  5. Step 5: Solve for x
    x = 15,303,747,482.10/121,507.56
  6. Step 6: Final answer
    x = 125,948.93

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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.