Home / 120,120.24-165,748.32-68,437.92

Finding the Fourth Proportional to 120,120.24, 165,748.32 and 68,437.92

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Solution

The fourth proportional to 120,120.24, 165,748.32 and 68,437.92 is: 94,434.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,120.24 : 165,748.32 = 68,437.92 : x
  2. Step 2: Convert to fraction form
    120,120.24/165,748.32 = 68,437.92/x
  3. Step 3: Cross multiply
    120,120.24x = 165,748.32 × 68,437.92
  4. Step 4: Simplify right side
    120,120.24x = 11,343,470,264.29
  5. Step 5: Solve for x
    x = 11,343,470,264.29/120,120.24
  6. Step 6: Final answer
    x = 94,434.30

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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.