Home / 119,931.44-179,987.16-45,125.36

Finding the Fourth Proportional to 119,931.44, 179,987.16 and 45,125.36

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Solution

The fourth proportional to 119,931.44, 179,987.16 and 45,125.36 is: 67,721.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,931.44 : 179,987.16 = 45,125.36 : x
  2. Step 2: Convert to fraction form
    119,931.44/179,987.16 = 45,125.36/x
  3. Step 3: Cross multiply
    119,931.44x = 179,987.16 × 45,125.36
  4. Step 4: Simplify right side
    119,931.44x = 8,121,985,390.38
  5. Step 5: Solve for x
    x = 8,121,985,390.38/119,931.44
  6. Step 6: Final answer
    x = 67,721.90

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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.