Home / 120,200.48-165,911.28-84,399.20

Finding the Fourth Proportional to 120,200.48, 165,911.28 and 84,399.20

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Solution

The fourth proportional to 120,200.48, 165,911.28 and 84,399.20 is: 116,495.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,200.48 : 165,911.28 = 84,399.20 : x
  2. Step 2: Convert to fraction form
    120,200.48/165,911.28 = 84,399.20/x
  3. Step 3: Cross multiply
    120,200.48x = 165,911.28 × 84,399.20
  4. Step 4: Simplify right side
    120,200.48x = 14,002,779,302.98
  5. Step 5: Solve for x
    x = 14,002,779,302.98/120,200.48
  6. Step 6: Final answer
    x = 116,495.20

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1.5x scale

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.