Home / 142,048.68-213,017.67-53,253.75

Finding the Fourth Proportional to 142,048.68, 213,017.67 and 53,253.75

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Solution

The fourth proportional to 142,048.68, 213,017.67 and 53,253.75 is: 79,859.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,048.68 : 213,017.67 = 53,253.75 : x
  2. Step 2: Convert to fraction form
    142,048.68/213,017.67 = 53,253.75/x
  3. Step 3: Cross multiply
    142,048.68x = 213,017.67 × 53,253.75
  4. Step 4: Simplify right side
    142,048.68x = 11,343,989,743.76
  5. Step 5: Solve for x
    x = 11,343,989,743.76/142,048.68
  6. Step 6: Final answer
    x = 79,859.87

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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.