Home / 131,707.47-181,736.73-79,997.67

Finding the Fourth Proportional to 131,707.47, 181,736.73 and 79,997.67

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Solution

The fourth proportional to 131,707.47, 181,736.73 and 79,997.67 is: 110,384.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,707.47 : 181,736.73 = 79,997.67 : x
  2. Step 2: Convert to fraction form
    131,707.47/181,736.73 = 79,997.67/x
  3. Step 3: Cross multiply
    131,707.47x = 181,736.73 × 79,997.67
  4. Step 4: Simplify right side
    131,707.47x = 14,538,514,953.42
  5. Step 5: Solve for x
    x = 14,538,514,953.42/131,707.47
  6. Step 6: Final answer
    x = 110,384.89

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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.