Home / 142,328.52-213,485.09-72,206.01

Finding the Fourth Proportional to 142,328.52, 213,485.09 and 72,206.01

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Solution

The fourth proportional to 142,328.52, 213,485.09 and 72,206.01 is: 108,305.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,328.52 : 213,485.09 = 72,206.01 : x
  2. Step 2: Convert to fraction form
    142,328.52/213,485.09 = 72,206.01/x
  3. Step 3: Cross multiply
    142,328.52x = 213,485.09 × 72,206.01
  4. Step 4: Simplify right side
    142,328.52x = 15,414,906,182.36
  5. Step 5: Solve for x
    x = 15,414,906,182.36/142,328.52
  6. Step 6: Final answer
    x = 108,305.11

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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.