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Finding the Fourth Proportional to 120,899.60, 169,434.40 and 120,899.60

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Solution

The fourth proportional to 120,899.60, 169,434.40 and 120,899.60 is: 169,434.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,899.60 : 169,434.40 = 120,899.60 : x
  2. Step 2: Convert to fraction form
    120,899.60/169,434.40 = 120,899.60/x
  3. Step 3: Cross multiply
    120,899.60x = 169,434.40 × 120,899.60
  4. Step 4: Simplify right side
    120,899.60x = 20,484,551,186.24
  5. Step 5: Solve for x
    x = 20,484,551,186.24/120,899.60
  6. Step 6: Final answer
    x = 169,434.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.