Home / 120,106.98-165,730.73-69,100.34

Finding the Fourth Proportional to 120,106.98, 165,730.73 and 69,100.34

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Solution

The fourth proportional to 120,106.98, 165,730.73 and 69,100.34 is: 95,348.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,106.98 : 165,730.73 = 69,100.34 : x
  2. Step 2: Convert to fraction form
    120,106.98/165,730.73 = 69,100.34/x
  3. Step 3: Cross multiply
    120,106.98x = 165,730.73 × 69,100.34
  4. Step 4: Simplify right side
    120,106.98x = 11,452,048,617.29
  5. Step 5: Solve for x
    x = 11,452,048,617.29/120,106.98
  6. Step 6: Final answer
    x = 95,348.74

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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.