Home / 121,723.48-168,193.02-93,671.56

Finding the Fourth Proportional to 121,723.48, 168,193.02 and 93,671.56

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Solution

The fourth proportional to 121,723.48, 168,193.02 and 93,671.56 is: 129,431.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,723.48 : 168,193.02 = 93,671.56 : x
  2. Step 2: Convert to fraction form
    121,723.48/168,193.02 = 93,671.56/x
  3. Step 3: Cross multiply
    121,723.48x = 168,193.02 × 93,671.56
  4. Step 4: Simplify right side
    121,723.48x = 15,754,902,564.51
  5. Step 5: Solve for x
    x = 15,754,902,564.51/121,723.48
  6. Step 6: Final answer
    x = 129,431.91

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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.