Home / 213,153.47-319,660.98-70,960.53

Finding the Fourth Proportional to 213,153.47, 319,660.98 and 70,960.53

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Solution

The fourth proportional to 213,153.47, 319,660.98 and 70,960.53 is: 106,417.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,153.47 : 319,660.98 = 70,960.53 : x
  2. Step 2: Convert to fraction form
    213,153.47/319,660.98 = 70,960.53/x
  3. Step 3: Cross multiply
    213,153.47x = 319,660.98 × 70,960.53
  4. Step 4: Simplify right side
    213,153.47x = 22,683,312,561.12
  5. Step 5: Solve for x
    x = 22,683,312,561.12/213,153.47
  6. Step 6: Final answer
    x = 106,417.75

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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.