Home / 142,420.52-213,631.50-37,239.72

Finding the Fourth Proportional to 142,420.52, 213,631.50 and 37,239.72

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Solution

The fourth proportional to 142,420.52, 213,631.50 and 37,239.72 is: 55,859.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,420.52 : 213,631.50 = 37,239.72 : x
  2. Step 2: Convert to fraction form
    142,420.52/213,631.50 = 37,239.72/x
  3. Step 3: Cross multiply
    142,420.52x = 213,631.50 × 37,239.72
  4. Step 4: Simplify right side
    142,420.52x = 7,955,577,243.18
  5. Step 5: Solve for x
    x = 7,955,577,243.18/142,420.52
  6. Step 6: Final answer
    x = 55,859.77

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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.