Home / 98,721.02-136,238.23-54,009.02

Finding the Fourth Proportional to 98,721.02, 136,238.23 and 54,009.02

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Solution

The fourth proportional to 98,721.02, 136,238.23 and 54,009.02 is: 74,534.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,721.02 : 136,238.23 = 54,009.02 : x
  2. Step 2: Convert to fraction form
    98,721.02/136,238.23 = 54,009.02/x
  3. Step 3: Cross multiply
    98,721.02x = 136,238.23 × 54,009.02
  4. Step 4: Simplify right side
    98,721.02x = 7,358,093,288.83
  5. Step 5: Solve for x
    x = 7,358,093,288.83/98,721.02
  6. Step 6: Final answer
    x = 74,534.21

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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.