Home / 213,070.05-319,522.01-79,877.63

Finding the Fourth Proportional to 213,070.05, 319,522.01 and 79,877.63

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Solution

The fourth proportional to 213,070.05, 319,522.01 and 79,877.63 is: 119,785.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,070.05 : 319,522.01 = 79,877.63 : x
  2. Step 2: Convert to fraction form
    213,070.05/319,522.01 = 79,877.63/x
  3. Step 3: Cross multiply
    213,070.05x = 319,522.01 × 79,877.63
  4. Step 4: Simplify right side
    213,070.05x = 25,522,658,894.64
  5. Step 5: Solve for x
    x = 25,522,658,894.64/213,070.05
  6. Step 6: Final answer
    x = 119,785.30

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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.