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Finding the Fourth Proportional to 186,088.19, 279,019.92 and 83,486.79

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Solution

The fourth proportional to 186,088.19, 279,019.92 and 83,486.79 is: 125,179.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,088.19 : 279,019.92 = 83,486.79 : x
  2. Step 2: Convert to fraction form
    186,088.19/279,019.92 = 83,486.79/x
  3. Step 3: Cross multiply
    186,088.19x = 279,019.92 × 83,486.79
  4. Step 4: Simplify right side
    186,088.19x = 23,294,477,466.86
  5. Step 5: Solve for x
    x = 23,294,477,466.86/186,088.19
  6. Step 6: Final answer
    x = 125,179.77

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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.