Home / 153,409.68-211,654.62-89,702.37

Finding the Fourth Proportional to 153,409.68, 211,654.62 and 89,702.37

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Solution

The fourth proportional to 153,409.68, 211,654.62 and 89,702.37 is: 123,759.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,409.68 : 211,654.62 = 89,702.37 : x
  2. Step 2: Convert to fraction form
    153,409.68/211,654.62 = 89,702.37/x
  3. Step 3: Cross multiply
    153,409.68x = 211,654.62 × 89,702.37
  4. Step 4: Simplify right side
    153,409.68x = 18,985,921,035.45
  5. Step 5: Solve for x
    x = 18,985,921,035.45/153,409.68
  6. Step 6: Final answer
    x = 123,759.60

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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.