Home / 145,320.28-200,566.07-84,890.72

Finding the Fourth Proportional to 145,320.28, 200,566.07 and 84,890.72

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Solution

The fourth proportional to 145,320.28, 200,566.07 and 84,890.72 is: 117,163.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,320.28 : 200,566.07 = 84,890.72 : x
  2. Step 2: Convert to fraction form
    145,320.28/200,566.07 = 84,890.72/x
  3. Step 3: Cross multiply
    145,320.28x = 200,566.07 × 84,890.72
  4. Step 4: Simplify right side
    145,320.28x = 17,026,198,089.87
  5. Step 5: Solve for x
    x = 17,026,198,089.87/145,320.28
  6. Step 6: Final answer
    x = 117,163.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.