Home / 121,458.12-180,966-114,667.50

Finding the Fourth Proportional to 121,458.12, 180,966 and 114,667.50

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Solution

The fourth proportional to 121,458.12, 180,966 and 114,667.50 is: 170,848.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,458.12 : 180,966 = 114,667.50 : x
  2. Step 2: Convert to fraction form
    121,458.12/180,966 = 114,667.50/x
  3. Step 3: Cross multiply
    121,458.12x = 180,966 × 114,667.50
  4. Step 4: Simplify right side
    121,458.12x = 20,750,918,805
  5. Step 5: Solve for x
    x = 20,750,918,805/121,458.12
  6. Step 6: Final answer
    x = 170,848.35

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.