Home / 186,053.28-279,077.64-45,813.12

Finding the Fourth Proportional to 186,053.28, 279,077.64 and 45,813.12

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Solution

The fourth proportional to 186,053.28, 279,077.64 and 45,813.12 is: 68,719.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,053.28 : 279,077.64 = 45,813.12 : x
  2. Step 2: Convert to fraction form
    186,053.28/279,077.64 = 45,813.12/x
  3. Step 3: Cross multiply
    186,053.28x = 279,077.64 × 45,813.12
  4. Step 4: Simplify right side
    186,053.28x = 12,785,417,410.64
  5. Step 5: Solve for x
    x = 12,785,417,410.64/186,053.28
  6. Step 6: Final answer
    x = 68,719.12

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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.