Home / 103,519.50-142,837.80-58,191.48

Finding the Fourth Proportional to 103,519.50, 142,837.80 and 58,191.48

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Solution

The fourth proportional to 103,519.50, 142,837.80 and 58,191.48 is: 80,293.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,519.50 : 142,837.80 = 58,191.48 : x
  2. Step 2: Convert to fraction form
    103,519.50/142,837.80 = 58,191.48/x
  3. Step 3: Cross multiply
    103,519.50x = 142,837.80 × 58,191.48
  4. Step 4: Simplify right side
    103,519.50x = 8,311,942,981.94
  5. Step 5: Solve for x
    x = 8,311,942,981.94/103,519.50
  6. Step 6: Final answer
    x = 80,293.50

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1.5x scale

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.