Home / 131,813.36-181,902.48-72,197.36

Finding the Fourth Proportional to 131,813.36, 181,902.48 and 72,197.36

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Solution

The fourth proportional to 131,813.36, 181,902.48 and 72,197.36 is: 99,632.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,813.36 : 181,902.48 = 72,197.36 : x
  2. Step 2: Convert to fraction form
    131,813.36/181,902.48 = 72,197.36/x
  3. Step 3: Cross multiply
    131,813.36x = 181,902.48 × 72,197.36
  4. Step 4: Simplify right side
    131,813.36x = 13,132,878,833.45
  5. Step 5: Solve for x
    x = 13,132,878,833.45/131,813.36
  6. Step 6: Final answer
    x = 99,632.38

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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.