Home / 142,048.45-213,017.30-53,253.50

Finding the Fourth Proportional to 142,048.45, 213,017.30 and 53,253.50

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Solution

The fourth proportional to 142,048.45, 213,017.30 and 53,253.50 is: 79,859.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,048.45 : 213,017.30 = 53,253.50 : x
  2. Step 2: Convert to fraction form
    142,048.45/213,017.30 = 53,253.50/x
  3. Step 3: Cross multiply
    142,048.45x = 213,017.30 × 53,253.50
  4. Step 4: Simplify right side
    142,048.45x = 11,343,916,519.28
  5. Step 5: Solve for x
    x = 11,343,916,519.28/142,048.45
  6. Step 6: Final answer
    x = 79,859.49

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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.