Home / 142,317.52-213,468.58-72,195.01

Finding the Fourth Proportional to 142,317.52, 213,468.58 and 72,195.01

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Solution

The fourth proportional to 142,317.52, 213,468.58 and 72,195.01 is: 108,288.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,317.52 : 213,468.58 = 72,195.01 : x
  2. Step 2: Convert to fraction form
    142,317.52/213,468.58 = 72,195.01/x
  3. Step 3: Cross multiply
    142,317.52x = 213,468.58 × 72,195.01
  4. Step 4: Simplify right side
    142,317.52x = 15,411,366,267.79
  5. Step 5: Solve for x
    x = 15,411,366,267.79/142,317.52
  6. Step 6: Final answer
    x = 108,288.61

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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.