Home / 199,931.52-299,890.56-52,187.52

Finding the Fourth Proportional to 199,931.52, 299,890.56 and 52,187.52

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Solution

The fourth proportional to 199,931.52, 299,890.56 and 52,187.52 is: 78,279.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,931.52 : 299,890.56 = 52,187.52 : x
  2. Step 2: Convert to fraction form
    199,931.52/299,890.56 = 52,187.52/x
  3. Step 3: Cross multiply
    199,931.52x = 299,890.56 × 52,187.52
  4. Step 4: Simplify right side
    199,931.52x = 15,650,544,597.81
  5. Step 5: Solve for x
    x = 15,650,544,597.81/199,931.52
  6. Step 6: Final answer
    x = 78,279.53

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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.