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Finding the Fourth Proportional to 130,188.60, 195,234.30 and 45,916.20

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Solution

The fourth proportional to 130,188.60, 195,234.30 and 45,916.20 is: 68,857.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,188.60 : 195,234.30 = 45,916.20 : x
  2. Step 2: Convert to fraction form
    130,188.60/195,234.30 = 45,916.20/x
  3. Step 3: Cross multiply
    130,188.60x = 195,234.30 × 45,916.20
  4. Step 4: Simplify right side
    130,188.60x = 8,964,417,165.66
  5. Step 5: Solve for x
    x = 8,964,417,165.66/130,188.60
  6. Step 6: Final answer
    x = 68,857.16

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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.