Home / 121,218.33-181,742.95-53,713.65

Finding the Fourth Proportional to 121,218.33, 181,742.95 and 53,713.65

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Solution

The fourth proportional to 121,218.33, 181,742.95 and 53,713.65 is: 80,533.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,218.33 : 181,742.95 = 53,713.65 : x
  2. Step 2: Convert to fraction form
    121,218.33/181,742.95 = 53,713.65/x
  3. Step 3: Cross multiply
    121,218.33x = 181,742.95 × 53,713.65
  4. Step 4: Simplify right side
    121,218.33x = 9,762,077,206.27
  5. Step 5: Solve for x
    x = 9,762,077,206.27/121,218.33
  6. Step 6: Final answer
    x = 80,533.01

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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.