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Finding the Fourth Proportional to 114,673.60, 172,010.40 and 79,244.20

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Solution

The fourth proportional to 114,673.60, 172,010.40 and 79,244.20 is: 118,866.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,673.60 : 172,010.40 = 79,244.20 : x
  2. Step 2: Convert to fraction form
    114,673.60/172,010.40 = 79,244.20/x
  3. Step 3: Cross multiply
    114,673.60x = 172,010.40 × 79,244.20
  4. Step 4: Simplify right side
    114,673.60x = 13,630,826,539.68
  5. Step 5: Solve for x
    x = 13,630,826,539.68/114,673.60
  6. Step 6: Final answer
    x = 118,866.30

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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.