Home / 131,123.60-196,539.60-72,001.70

Finding the Fourth Proportional to 131,123.60, 196,539.60 and 72,001.70

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Solution

The fourth proportional to 131,123.60, 196,539.60 and 72,001.70 is: 107,922.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,123.60 : 196,539.60 = 72,001.70 : x
  2. Step 2: Convert to fraction form
    131,123.60/196,539.60 = 72,001.70/x
  3. Step 3: Cross multiply
    131,123.60x = 196,539.60 × 72,001.70
  4. Step 4: Simplify right side
    131,123.60x = 14,151,185,317.32
  5. Step 5: Solve for x
    x = 14,151,185,317.32/131,123.60
  6. Step 6: Final answer
    x = 107,922.49

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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.