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Finding the Fourth Proportional to 131,482.60, 197,223.90 and 72,433.60

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Solution

The fourth proportional to 131,482.60, 197,223.90 and 72,433.60 is: 108,650.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,482.60 : 197,223.90 = 72,433.60 : x
  2. Step 2: Convert to fraction form
    131,482.60/197,223.90 = 72,433.60/x
  3. Step 3: Cross multiply
    131,482.60x = 197,223.90 × 72,433.60
  4. Step 4: Simplify right side
    131,482.60x = 14,285,637,083.04
  5. Step 5: Solve for x
    x = 14,285,637,083.04/131,482.60
  6. Step 6: Final answer
    x = 108,650.40

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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.