Home / 125,721.02-173,480.47-72,002.84

Finding the Fourth Proportional to 125,721.02, 173,480.47 and 72,002.84

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Solution

The fourth proportional to 125,721.02, 173,480.47 and 72,002.84 is: 99,355.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,721.02 : 173,480.47 = 72,002.84 : x
  2. Step 2: Convert to fraction form
    125,721.02/173,480.47 = 72,002.84/x
  3. Step 3: Cross multiply
    125,721.02x = 173,480.47 × 72,002.84
  4. Step 4: Simplify right side
    125,721.02x = 12,491,085,477.13
  5. Step 5: Solve for x
    x = 12,491,085,477.13/125,721.02
  6. Step 6: Final answer
    x = 99,355.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.