Home / 121,218.63-181,828.28-121,043.46

Finding the Fourth Proportional to 121,218.63, 181,828.28 and 121,043.46

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Solution

The fourth proportional to 121,218.63, 181,828.28 and 121,043.46 is: 181,565.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,218.63 : 181,828.28 = 121,043.46 : x
  2. Step 2: Convert to fraction form
    121,218.63/181,828.28 = 121,043.46/x
  3. Step 3: Cross multiply
    121,218.63x = 181,828.28 × 121,043.46
  4. Step 4: Simplify right side
    121,218.63x = 22,009,124,440.64
  5. Step 5: Solve for x
    x = 22,009,124,440.64/121,218.63
  6. Step 6: Final answer
    x = 181,565.53

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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.