Home / 138,475.07-191,096.43-77,225.13

Finding the Fourth Proportional to 138,475.07, 191,096.43 and 77,225.13

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Solution

The fourth proportional to 138,475.07, 191,096.43 and 77,225.13 is: 106,571.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,475.07 : 191,096.43 = 77,225.13 : x
  2. Step 2: Convert to fraction form
    138,475.07/191,096.43 = 77,225.13/x
  3. Step 3: Cross multiply
    138,475.07x = 191,096.43 × 77,225.13
  4. Step 4: Simplify right side
    138,475.07x = 14,757,446,649.29
  5. Step 5: Solve for x
    x = 14,757,446,649.29/138,475.07
  6. Step 6: Final answer
    x = 106,571.15

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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.