Home / 117,750.13-162,412.82-77,451.01

Finding the Fourth Proportional to 117,750.13, 162,412.82 and 77,451.01

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Solution

The fourth proportional to 117,750.13, 162,412.82 and 77,451.01 is: 106,828.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,750.13 : 162,412.82 = 77,451.01 : x
  2. Step 2: Convert to fraction form
    117,750.13/162,412.82 = 77,451.01/x
  3. Step 3: Cross multiply
    117,750.13x = 162,412.82 × 77,451.01
  4. Step 4: Simplify right side
    117,750.13x = 12,579,036,558.69
  5. Step 5: Solve for x
    x = 12,579,036,558.69/117,750.13
  6. Step 6: Final answer
    x = 106,828.22

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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.