Home / 109,846.40-151,580.89-61,439.95

Finding the Fourth Proportional to 109,846.40, 151,580.89 and 61,439.95

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Solution

The fourth proportional to 109,846.40, 151,580.89 and 61,439.95 is: 84,783.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,846.40 : 151,580.89 = 61,439.95 : x
  2. Step 2: Convert to fraction form
    109,846.40/151,580.89 = 61,439.95/x
  3. Step 3: Cross multiply
    109,846.40x = 151,580.89 × 61,439.95
  4. Step 4: Simplify right side
    109,846.40x = 9,313,122,223.23
  5. Step 5: Solve for x
    x = 9,313,122,223.23/109,846.40
  6. Step 6: Final answer
    x = 84,783.14

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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.