Home / 109,047.90-150,478.64-61,308.66

Finding the Fourth Proportional to 109,047.90, 150,478.64 and 61,308.66

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Solution

The fourth proportional to 109,047.90, 150,478.64 and 61,308.66 is: 84,601.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,047.90 : 150,478.64 = 61,308.66 : x
  2. Step 2: Convert to fraction form
    109,047.90/150,478.64 = 61,308.66/x
  3. Step 3: Cross multiply
    109,047.90x = 150,478.64 × 61,308.66
  4. Step 4: Simplify right side
    109,047.90x = 9,225,643,777.02
  5. Step 5: Solve for x
    x = 9,225,643,777.02/109,047.90
  6. Step 6: Final answer
    x = 84,601.76

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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.