Home / 142,438.03-213,594.71-67,579.52

Finding the Fourth Proportional to 142,438.03, 213,594.71 and 67,579.52

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Solution

The fourth proportional to 142,438.03, 213,594.71 and 67,579.52 is: 101,339.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,438.03 : 213,594.71 = 67,579.52 : x
  2. Step 2: Convert to fraction form
    142,438.03/213,594.71 = 67,579.52/x
  3. Step 3: Cross multiply
    142,438.03x = 213,594.71 × 67,579.52
  4. Step 4: Simplify right side
    142,438.03x = 14,434,626,570.47
  5. Step 5: Solve for x
    x = 14,434,626,570.47/142,438.03
  6. Step 6: Final answer
    x = 101,339.70

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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.