Home / 142,431.62-213,639.93-42,592.64

Finding the Fourth Proportional to 142,431.62, 213,639.93 and 42,592.64

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Solution

The fourth proportional to 142,431.62, 213,639.93 and 42,592.64 is: 63,886.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,431.62 : 213,639.93 = 42,592.64 : x
  2. Step 2: Convert to fraction form
    142,431.62/213,639.93 = 42,592.64/x
  3. Step 3: Cross multiply
    142,431.62x = 213,639.93 × 42,592.64
  4. Step 4: Simplify right side
    142,431.62x = 9,099,487,559.92
  5. Step 5: Solve for x
    x = 9,099,487,559.92/142,431.62
  6. Step 6: Final answer
    x = 63,886.71

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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.