Home / 142,729.74-213,948.81-92,909.88

Finding the Fourth Proportional to 142,729.74, 213,948.81 and 92,909.88

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Solution

The fourth proportional to 142,729.74, 213,948.81 and 92,909.88 is: 139,269.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,729.74 : 213,948.81 = 92,909.88 : x
  2. Step 2: Convert to fraction form
    142,729.74/213,948.81 = 92,909.88/x
  3. Step 3: Cross multiply
    142,729.74x = 213,948.81 × 92,909.88
  4. Step 4: Simplify right side
    142,729.74x = 19,877,958,263.24
  5. Step 5: Solve for x
    x = 19,877,958,263.24/142,729.74
  6. Step 6: Final answer
    x = 139,269.91

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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.