Home / 142,330.74-213,488.82-42,491.76

Finding the Fourth Proportional to 142,330.74, 213,488.82 and 42,491.76

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Solution

The fourth proportional to 142,330.74, 213,488.82 and 42,491.76 is: 63,735.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,330.74 : 213,488.82 = 42,491.76 : x
  2. Step 2: Convert to fraction form
    142,330.74/213,488.82 = 42,491.76/x
  3. Step 3: Cross multiply
    142,330.74x = 213,488.82 × 42,491.76
  4. Step 4: Simplify right side
    142,330.74x = 9,071,515,702.12
  5. Step 5: Solve for x
    x = 9,071,515,702.12/142,330.74
  6. Step 6: Final answer
    x = 63,735.46

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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.