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Finding the Fourth Proportional to 88,418.51, 122,026.85 and 77,415.85

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Solution

The fourth proportional to 88,418.51, 122,026.85 and 77,415.85 is: 106,842.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,418.51 : 122,026.85 = 77,415.85 : x
  2. Step 2: Convert to fraction form
    88,418.51/122,026.85 = 77,415.85/x
  3. Step 3: Cross multiply
    88,418.51x = 122,026.85 × 77,415.85
  4. Step 4: Simplify right side
    88,418.51x = 9,446,812,204.04
  5. Step 5: Solve for x
    x = 9,446,812,204.04/88,418.51
  6. Step 6: Final answer
    x = 106,842.02

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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.