Home / 213,061.74-319,582.23-79,931.63

Finding the Fourth Proportional to 213,061.74, 319,582.23 and 79,931.63

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Solution

The fourth proportional to 213,061.74, 319,582.23 and 79,931.63 is: 119,893.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,061.74 : 319,582.23 = 79,931.63 : x
  2. Step 2: Convert to fraction form
    213,061.74/319,582.23 = 79,931.63/x
  3. Step 3: Cross multiply
    213,061.74x = 319,582.23 × 79,931.63
  4. Step 4: Simplify right side
    213,061.74x = 25,544,726,965.02
  5. Step 5: Solve for x
    x = 25,544,726,965.02/213,061.74
  6. Step 6: Final answer
    x = 119,893.54

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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.