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Finding the Fourth Proportional to 169,905.32, 254,864.46 and 86,702.12

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Solution

The fourth proportional to 169,905.32, 254,864.46 and 86,702.12 is: 130,056.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,905.32 : 254,864.46 = 86,702.12 : x
  2. Step 2: Convert to fraction form
    169,905.32/254,864.46 = 86,702.12/x
  3. Step 3: Cross multiply
    169,905.32x = 254,864.46 × 86,702.12
  4. Step 4: Simplify right side
    169,905.32x = 22,097,288,994.66
  5. Step 5: Solve for x
    x = 22,097,288,994.66/169,905.32
  6. Step 6: Final answer
    x = 130,056.49

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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.