Home / 109,782.95-151,480.53-61,385.75

Finding the Fourth Proportional to 109,782.95, 151,480.53 and 61,385.75

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Solution

The fourth proportional to 109,782.95, 151,480.53 and 61,385.75 is: 84,701.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,782.95 : 151,480.53 = 61,385.75 : x
  2. Step 2: Convert to fraction form
    109,782.95/151,480.53 = 61,385.75/x
  3. Step 3: Cross multiply
    109,782.95x = 151,480.53 × 61,385.75
  4. Step 4: Simplify right side
    109,782.95x = 9,298,745,755.10
  5. Step 5: Solve for x
    x = 9,298,745,755.10/109,782.95
  6. Step 6: Final answer
    x = 84,701.19

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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.