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Finding the Fourth Proportional to 142,707.15, 213,770.07 and 67,599.63

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Solution

The fourth proportional to 142,707.15, 213,770.07 and 67,599.63 is: 101,261.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,707.15 : 213,770.07 = 67,599.63 : x
  2. Step 2: Convert to fraction form
    142,707.15/213,770.07 = 67,599.63/x
  3. Step 3: Cross multiply
    142,707.15x = 213,770.07 × 67,599.63
  4. Step 4: Simplify right side
    142,707.15x = 14,450,777,637.07
  5. Step 5: Solve for x
    x = 14,450,777,637.07/142,707.15
  6. Step 6: Final answer
    x = 101,261.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.