Home / 131,127.60-196,545.60-72,005.70

Finding the Fourth Proportional to 131,127.60, 196,545.60 and 72,005.70

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Solution

The fourth proportional to 131,127.60, 196,545.60 and 72,005.70 is: 107,928.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,127.60 : 196,545.60 = 72,005.70 : x
  2. Step 2: Convert to fraction form
    131,127.60/196,545.60 = 72,005.70/x
  3. Step 3: Cross multiply
    131,127.60x = 196,545.60 × 72,005.70
  4. Step 4: Simplify right side
    131,127.60x = 14,152,403,509.92
  5. Step 5: Solve for x
    x = 14,152,403,509.92/131,127.60
  6. Step 6: Final answer
    x = 107,928.49

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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.