Home / 131,535.02-181,518.09-71,105.70

Finding the Fourth Proportional to 131,535.02, 181,518.09 and 71,105.70

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Solution

The fourth proportional to 131,535.02, 181,518.09 and 71,105.70 is: 98,125.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,535.02 : 181,518.09 = 71,105.70 : x
  2. Step 2: Convert to fraction form
    131,535.02/181,518.09 = 71,105.70/x
  3. Step 3: Cross multiply
    131,535.02x = 181,518.09 × 71,105.70
  4. Step 4: Simplify right side
    131,535.02x = 12,906,970,852.11
  5. Step 5: Solve for x
    x = 12,906,970,852.11/131,535.02
  6. Step 6: Final answer
    x = 98,125.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.