Home / 121,842.46-168,178.35-70,867.18

Finding the Fourth Proportional to 121,842.46, 168,178.35 and 70,867.18

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Solution

The fourth proportional to 121,842.46, 168,178.35 and 70,867.18 is: 97,817.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,842.46 : 168,178.35 = 70,867.18 : x
  2. Step 2: Convert to fraction form
    121,842.46/168,178.35 = 70,867.18/x
  3. Step 3: Cross multiply
    121,842.46x = 168,178.35 × 70,867.18
  4. Step 4: Simplify right side
    121,842.46x = 11,918,325,401.55
  5. Step 5: Solve for x
    x = 11,918,325,401.55/121,842.46
  6. Step 6: Final answer
    x = 97,817.50

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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.