Home / 109,416.42-164,058.92-42,777.15

Finding the Fourth Proportional to 109,416.42, 164,058.92 and 42,777.15

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Solution

The fourth proportional to 109,416.42, 164,058.92 and 42,777.15 is: 64,140.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,416.42 : 164,058.92 = 42,777.15 : x
  2. Step 2: Convert to fraction form
    109,416.42/164,058.92 = 42,777.15/x
  3. Step 3: Cross multiply
    109,416.42x = 164,058.92 × 42,777.15
  4. Step 4: Simplify right side
    109,416.42x = 7,017,972,360.99
  5. Step 5: Solve for x
    x = 7,017,972,360.99/109,416.42
  6. Step 6: Final answer
    x = 64,140.03

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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.