Home / 142,001.36-212,939.37-53,192.55

Finding the Fourth Proportional to 142,001.36, 212,939.37 and 53,192.55

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Solution

The fourth proportional to 142,001.36, 212,939.37 and 53,192.55 is: 79,765.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,001.36 : 212,939.37 = 53,192.55 : x
  2. Step 2: Convert to fraction form
    142,001.36/212,939.37 = 53,192.55/x
  3. Step 3: Cross multiply
    142,001.36x = 212,939.37 × 53,192.55
  4. Step 4: Simplify right side
    142,001.36x = 11,326,788,085.69
  5. Step 5: Solve for x
    x = 11,326,788,085.69/142,001.36
  6. Step 6: Final answer
    x = 79,765.35

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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.