Home / 153,677.57-211,999.82-102,702.92

Finding the Fourth Proportional to 153,677.57, 211,999.82 and 102,702.92

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Solution

The fourth proportional to 153,677.57, 211,999.82 and 102,702.92 is: 141,679.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,677.57 : 211,999.82 = 102,702.92 : x
  2. Step 2: Convert to fraction form
    153,677.57/211,999.82 = 102,702.92/x
  3. Step 3: Cross multiply
    153,677.57x = 211,999.82 × 102,702.92
  4. Step 4: Simplify right side
    153,677.57x = 21,772,998,979.96
  5. Step 5: Solve for x
    x = 21,772,998,979.96/153,677.57
  6. Step 6: Final answer
    x = 141,679.75

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1.5x scale

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.