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Finding the Fourth Proportional to 104,864.88, 157,141.77 and 77,026.80

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Solution

The fourth proportional to 104,864.88, 157,141.77 and 77,026.80 is: 115,425.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,864.88 : 157,141.77 = 77,026.80 : x
  2. Step 2: Convert to fraction form
    104,864.88/157,141.77 = 77,026.80/x
  3. Step 3: Cross multiply
    104,864.88x = 157,141.77 × 77,026.80
  4. Step 4: Simplify right side
    104,864.88x = 12,104,127,689.44
  5. Step 5: Solve for x
    x = 12,104,127,689.44/104,864.88
  6. Step 6: Final answer
    x = 115,425.94

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1.5x scale

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.