Home / 103,349.88-142,556.22-71,069.76

Finding the Fourth Proportional to 103,349.88, 142,556.22 and 71,069.76

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Solution

The fourth proportional to 103,349.88, 142,556.22 and 71,069.76 is: 98,030.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,349.88 : 142,556.22 = 71,069.76 : x
  2. Step 2: Convert to fraction form
    103,349.88/142,556.22 = 71,069.76/x
  3. Step 3: Cross multiply
    103,349.88x = 142,556.22 × 71,069.76
  4. Step 4: Simplify right side
    103,349.88x = 10,131,436,341.91
  5. Step 5: Solve for x
    x = 10,131,436,341.91/103,349.88
  6. Step 6: Final answer
    x = 98,030.46

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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.