Home / 122,981.84-168,607.96-120,739.83

Finding the Fourth Proportional to 122,981.84, 168,607.96 and 120,739.83

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Solution

The fourth proportional to 122,981.84, 168,607.96 and 120,739.83 is: 165,534.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,981.84 : 168,607.96 = 120,739.83 : x
  2. Step 2: Convert to fraction form
    122,981.84/168,607.96 = 120,739.83/x
  3. Step 3: Cross multiply
    122,981.84x = 168,607.96 × 120,739.83
  4. Step 4: Simplify right side
    122,981.84x = 20,357,696,154.50
  5. Step 5: Solve for x
    x = 20,357,696,154.50/122,981.84
  6. Step 6: Final answer
    x = 165,534.16

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.