Home / 165,153.12-247,729.68-66,588

Finding the Fourth Proportional to 165,153.12, 247,729.68 and 66,588

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Solution

The fourth proportional to 165,153.12, 247,729.68 and 66,588 is: 99,882

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,153.12 : 247,729.68 = 66,588 : x
  2. Step 2: Convert to fraction form
    165,153.12/247,729.68 = 66,588/x
  3. Step 3: Cross multiply
    165,153.12x = 247,729.68 × 66,588
  4. Step 4: Simplify right side
    165,153.12x = 16,495,823,931.84
  5. Step 5: Solve for x
    x = 16,495,823,931.84/165,153.12
  6. Step 6: Final answer
    x = 99,882

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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.