Home / 100,843.02-139,211.19-58,386.06

Finding the Fourth Proportional to 100,843.02, 139,211.19 and 58,386.06

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Solution

The fourth proportional to 100,843.02, 139,211.19 and 58,386.06 is: 80,600.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,843.02 : 139,211.19 = 58,386.06 : x
  2. Step 2: Convert to fraction form
    100,843.02/139,211.19 = 58,386.06/x
  3. Step 3: Cross multiply
    100,843.02x = 139,211.19 × 58,386.06
  4. Step 4: Simplify right side
    100,843.02x = 8,127,992,892.01
  5. Step 5: Solve for x
    x = 8,127,992,892.01/100,843.02
  6. Step 6: Final answer
    x = 80,600.45

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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.