Home / 121,311.04-167,409.92-70,354

Finding the Fourth Proportional to 121,311.04, 167,409.92 and 70,354

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Solution

The fourth proportional to 121,311.04, 167,409.92 and 70,354 is: 97,088.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,311.04 : 167,409.92 = 70,354 : x
  2. Step 2: Convert to fraction form
    121,311.04/167,409.92 = 70,354/x
  3. Step 3: Cross multiply
    121,311.04x = 167,409.92 × 70,354
  4. Step 4: Simplify right side
    121,311.04x = 11,777,957,511.68
  5. Step 5: Solve for x
    x = 11,777,957,511.68/121,311.04
  6. Step 6: Final answer
    x = 97,088.92

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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.