Home / 142,244.91-213,501.29-72,174.51

Finding the Fourth Proportional to 142,244.91, 213,501.29 and 72,174.51

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Solution

The fourth proportional to 142,244.91, 213,501.29 and 72,174.51 is: 108,329.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,244.91 : 213,501.29 = 72,174.51 : x
  2. Step 2: Convert to fraction form
    142,244.91/213,501.29 = 72,174.51/x
  3. Step 3: Cross multiply
    142,244.91x = 213,501.29 × 72,174.51
  4. Step 4: Simplify right side
    142,244.91x = 15,409,350,629.25
  5. Step 5: Solve for x
    x = 15,409,350,629.25/142,244.91
  6. Step 6: Final answer
    x = 108,329.72

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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.