Home / 212,735.52-318,931.02-79,596.63

Finding the Fourth Proportional to 212,735.52, 318,931.02 and 79,596.63

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Solution

The fourth proportional to 212,735.52, 318,931.02 and 79,596.63 is: 119,330.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,735.52 : 318,931.02 = 79,596.63 : x
  2. Step 2: Convert to fraction form
    212,735.52/318,931.02 = 79,596.63/x
  3. Step 3: Cross multiply
    212,735.52x = 318,931.02 × 79,596.63
  4. Step 4: Simplify right side
    212,735.52x = 25,385,834,394.46
  5. Step 5: Solve for x
    x = 25,385,834,394.46/212,735.52
  6. Step 6: Final answer
    x = 119,330.49

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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.