Home / 142,423.63-213,569.67-52,443.75

Finding the Fourth Proportional to 142,423.63, 213,569.67 and 52,443.75

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Solution

The fourth proportional to 142,423.63, 213,569.67 and 52,443.75 is: 78,641.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,423.63 : 213,569.67 = 52,443.75 : x
  2. Step 2: Convert to fraction form
    142,423.63/213,569.67 = 52,443.75/x
  3. Step 3: Cross multiply
    142,423.63x = 213,569.67 × 52,443.75
  4. Step 4: Simplify right side
    142,423.63x = 11,200,394,381.06
  5. Step 5: Solve for x
    x = 11,200,394,381.06/142,423.63
  6. Step 6: Final answer
    x = 78,641.41

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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.