Home / 186,477.12-279,465.28-91,562.40

Finding the Fourth Proportional to 186,477.12, 279,465.28 and 91,562.40

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Solution

The fourth proportional to 186,477.12, 279,465.28 and 91,562.40 is: 137,220.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,477.12 : 279,465.28 = 91,562.40 : x
  2. Step 2: Convert to fraction form
    186,477.12/279,465.28 = 91,562.40/x
  3. Step 3: Cross multiply
    186,477.12x = 279,465.28 × 91,562.40
  4. Step 4: Simplify right side
    186,477.12x = 25,588,511,753.47
  5. Step 5: Solve for x
    x = 25,588,511,753.47/186,477.12
  6. Step 6: Final answer
    x = 137,220.65

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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.