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Finding the Fourth Proportional to 168,117.60, 252,176.40 and 120,878.40

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Solution

The fourth proportional to 168,117.60, 252,176.40 and 120,878.40 is: 181,317.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,117.60 : 252,176.40 = 120,878.40 : x
  2. Step 2: Convert to fraction form
    168,117.60/252,176.40 = 120,878.40/x
  3. Step 3: Cross multiply
    168,117.60x = 252,176.40 × 120,878.40
  4. Step 4: Simplify right side
    168,117.60x = 30,482,679,749.76
  5. Step 5: Solve for x
    x = 30,482,679,749.76/168,117.60
  6. Step 6: Final answer
    x = 181,317.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.