Home / 208,590.38-312,782.04-66,417.14

Finding the Fourth Proportional to 208,590.38, 312,782.04 and 66,417.14

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Solution

The fourth proportional to 208,590.38, 312,782.04 and 66,417.14 is: 99,592.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,590.38 : 312,782.04 = 66,417.14 : x
  2. Step 2: Convert to fraction form
    208,590.38/312,782.04 = 66,417.14/x
  3. Step 3: Cross multiply
    208,590.38x = 312,782.04 × 66,417.14
  4. Step 4: Simplify right side
    208,590.38x = 20,774,086,976.26
  5. Step 5: Solve for x
    x = 20,774,086,976.26/208,590.38
  6. Step 6: Final answer
    x = 99,592.74

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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.