Home / 131,190.83-181,011.27-73,819

Finding the Fourth Proportional to 131,190.83, 181,011.27 and 73,819

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Solution

The fourth proportional to 131,190.83, 181,011.27 and 73,819 is: 101,852.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,190.83 : 181,011.27 = 73,819 : x
  2. Step 2: Convert to fraction form
    131,190.83/181,011.27 = 73,819/x
  3. Step 3: Cross multiply
    131,190.83x = 181,011.27 × 73,819
  4. Step 4: Simplify right side
    131,190.83x = 13,362,070,940.13
  5. Step 5: Solve for x
    x = 13,362,070,940.13/131,190.83
  6. Step 6: Final answer
    x = 101,852.17

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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.