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Finding the Fourth Proportional to 169,312.60, 254,076.90 and 80,666.20

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Solution

The fourth proportional to 169,312.60, 254,076.90 and 80,666.20 is: 121,050.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,312.60 : 254,076.90 = 80,666.20 : x
  2. Step 2: Convert to fraction form
    169,312.60/254,076.90 = 80,666.20/x
  3. Step 3: Cross multiply
    169,312.60x = 254,076.90 × 80,666.20
  4. Step 4: Simplify right side
    169,312.60x = 20,495,418,030.78
  5. Step 5: Solve for x
    x = 20,495,418,030.78/169,312.60
  6. Step 6: Final answer
    x = 121,050.75

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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.