Home / 151,539.83-209,126.45-83,559.28

Finding the Fourth Proportional to 151,539.83, 209,126.45 and 83,559.28

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Solution

The fourth proportional to 151,539.83, 209,126.45 and 83,559.28 is: 115,312.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,539.83 : 209,126.45 = 83,559.28 : x
  2. Step 2: Convert to fraction form
    151,539.83/209,126.45 = 83,559.28/x
  3. Step 3: Cross multiply
    151,539.83x = 209,126.45 × 83,559.28
  4. Step 4: Simplify right side
    151,539.83x = 17,474,455,590.96
  5. Step 5: Solve for x
    x = 17,474,455,590.96/151,539.83
  6. Step 6: Final answer
    x = 115,312.63

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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.