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Finding the Fourth Proportional to 142,497.77, 213,605.70 and 67,486.10

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Solution

The fourth proportional to 142,497.77, 213,605.70 and 67,486.10 is: 101,162.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,497.77 : 213,605.70 = 67,486.10 : x
  2. Step 2: Convert to fraction form
    142,497.77/213,605.70 = 67,486.10/x
  3. Step 3: Cross multiply
    142,497.77x = 213,605.70 × 67,486.10
  4. Step 4: Simplify right side
    142,497.77x = 14,415,415,630.77
  5. Step 5: Solve for x
    x = 14,415,415,630.77/142,497.77
  6. Step 6: Final answer
    x = 101,162.39

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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.