Home / 102,891.72-142,003.59-62,603.07

Finding the Fourth Proportional to 102,891.72, 142,003.59 and 62,603.07

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Solution

The fourth proportional to 102,891.72, 142,003.59 and 62,603.07 is: 86,400.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,891.72 : 142,003.59 = 62,603.07 : x
  2. Step 2: Convert to fraction form
    102,891.72/142,003.59 = 62,603.07/x
  3. Step 3: Cross multiply
    102,891.72x = 142,003.59 × 62,603.07
  4. Step 4: Simplify right side
    102,891.72x = 8,889,860,685.02
  5. Step 5: Solve for x
    x = 8,889,860,685.02/102,891.72
  6. Step 6: Final answer
    x = 86,400.16

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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.