Home / 109,646.02-151,310.64-61,908.76

Finding the Fourth Proportional to 109,646.02, 151,310.64 and 61,908.76

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Solution

The fourth proportional to 109,646.02, 151,310.64 and 61,908.76 is: 85,433.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,646.02 : 151,310.64 = 61,908.76 : x
  2. Step 2: Convert to fraction form
    109,646.02/151,310.64 = 61,908.76/x
  3. Step 3: Cross multiply
    109,646.02x = 151,310.64 × 61,908.76
  4. Step 4: Simplify right side
    109,646.02x = 9,367,454,097.21
  5. Step 5: Solve for x
    x = 9,367,454,097.21/109,646.02
  6. Step 6: Final answer
    x = 85,433.60

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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.