Home / 102,943.64-142,019.93-62,650.80

Finding the Fourth Proportional to 102,943.64, 142,019.93 and 62,650.80

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Solution

The fourth proportional to 102,943.64, 142,019.93 and 62,650.80 is: 86,432.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,943.64 : 142,019.93 = 62,650.80 : x
  2. Step 2: Convert to fraction form
    102,943.64/142,019.93 = 62,650.80/x
  3. Step 3: Cross multiply
    102,943.64x = 142,019.93 × 62,650.80
  4. Step 4: Simplify right side
    102,943.64x = 8,897,662,387.07
  5. Step 5: Solve for x
    x = 8,897,662,387.07/102,943.64
  6. Step 6: Final answer
    x = 86,432.36

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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.