Home / 117,539.28-162,207.56-69,144.77

Finding the Fourth Proportional to 117,539.28, 162,207.56 and 69,144.77

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Solution

The fourth proportional to 117,539.28, 162,207.56 and 69,144.77 is: 95,421.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,539.28 : 162,207.56 = 69,144.77 : x
  2. Step 2: Convert to fraction form
    117,539.28/162,207.56 = 69,144.77/x
  3. Step 3: Cross multiply
    117,539.28x = 162,207.56 × 69,144.77
  4. Step 4: Simplify right side
    117,539.28x = 11,215,803,271.70
  5. Step 5: Solve for x
    x = 11,215,803,271.70/117,539.28
  6. Step 6: Final answer
    x = 95,421.75

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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.