Home / 101,328.13-139,802.25-58,878.46

Finding the Fourth Proportional to 101,328.13, 139,802.25 and 58,878.46

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Solution

The fourth proportional to 101,328.13, 139,802.25 and 58,878.46 is: 81,234.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,328.13 : 139,802.25 = 58,878.46 : x
  2. Step 2: Convert to fraction form
    101,328.13/139,802.25 = 58,878.46/x
  3. Step 3: Cross multiply
    101,328.13x = 139,802.25 × 58,878.46
  4. Step 4: Simplify right side
    101,328.13x = 8,231,341,184.54
  5. Step 5: Solve for x
    x = 8,231,341,184.54/101,328.13
  6. Step 6: Final answer
    x = 81,234.51

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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.