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Finding the Fourth Proportional to 131,307.60, 196,903.80 and 52,395.60

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Solution

The fourth proportional to 131,307.60, 196,903.80 and 52,395.60 is: 78,570.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,307.60 : 196,903.80 = 52,395.60 : x
  2. Step 2: Convert to fraction form
    131,307.60/196,903.80 = 52,395.60/x
  3. Step 3: Cross multiply
    131,307.60x = 196,903.80 × 52,395.60
  4. Step 4: Simplify right side
    131,307.60x = 10,316,892,743.28
  5. Step 5: Solve for x
    x = 10,316,892,743.28/131,307.60
  6. Step 6: Final answer
    x = 78,570.42

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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.