Home / 147,349.08-203,366.30-86,934.69

Finding the Fourth Proportional to 147,349.08, 203,366.30 and 86,934.69

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Solution

The fourth proportional to 147,349.08, 203,366.30 and 86,934.69 is: 119,984.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,349.08 : 203,366.30 = 86,934.69 : x
  2. Step 2: Convert to fraction form
    147,349.08/203,366.30 = 86,934.69/x
  3. Step 3: Cross multiply
    147,349.08x = 203,366.30 × 86,934.69
  4. Step 4: Simplify right side
    147,349.08x = 17,679,585,812.27
  5. Step 5: Solve for x
    x = 17,679,585,812.27/147,349.08
  6. Step 6: Final answer
    x = 119,984.37

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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.