Home / 142,206.09-213,339.96-42,374.34

Finding the Fourth Proportional to 142,206.09, 213,339.96 and 42,374.34

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Solution

The fourth proportional to 142,206.09, 213,339.96 and 42,374.34 is: 63,570.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,206.09 : 213,339.96 = 42,374.34 : x
  2. Step 2: Convert to fraction form
    142,206.09/213,339.96 = 42,374.34/x
  3. Step 3: Cross multiply
    142,206.09x = 213,339.96 × 42,374.34
  4. Step 4: Simplify right side
    142,206.09x = 9,040,140,000.63
  5. Step 5: Solve for x
    x = 9,040,140,000.63/142,206.09
  6. Step 6: Final answer
    x = 63,570.70

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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.