Home / 124,771.84-172,202.70-79,435.34

Finding the Fourth Proportional to 124,771.84, 172,202.70 and 79,435.34

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Solution

The fourth proportional to 124,771.84, 172,202.70 and 79,435.34 is: 109,631.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,771.84 : 172,202.70 = 79,435.34 : x
  2. Step 2: Convert to fraction form
    124,771.84/172,202.70 = 79,435.34/x
  3. Step 3: Cross multiply
    124,771.84x = 172,202.70 × 79,435.34
  4. Step 4: Simplify right side
    124,771.84x = 13,678,980,023.42
  5. Step 5: Solve for x
    x = 13,678,980,023.42/124,771.84
  6. Step 6: Final answer
    x = 109,631.95

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1.5x scale

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.