Home / 119,799.12-179,679.63-39,830.45

Finding the Fourth Proportional to 119,799.12, 179,679.63 and 39,830.45

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Solution

The fourth proportional to 119,799.12, 179,679.63 and 39,830.45 is: 59,739.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,799.12 : 179,679.63 = 39,830.45 : x
  2. Step 2: Convert to fraction form
    119,799.12/179,679.63 = 39,830.45/x
  3. Step 3: Cross multiply
    119,799.12x = 179,679.63 × 39,830.45
  4. Step 4: Simplify right side
    119,799.12x = 7,156,719,620.34
  5. Step 5: Solve for x
    x = 7,156,719,620.34/119,799.12
  6. Step 6: Final answer
    x = 59,739.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.