Home / 117,839.79-176,412.36-77,784.87

Finding the Fourth Proportional to 117,839.79, 176,412.36 and 77,784.87

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Solution

The fourth proportional to 117,839.79, 176,412.36 and 77,784.87 is: 116,448.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,839.79 : 176,412.36 = 77,784.87 : x
  2. Step 2: Convert to fraction form
    117,839.79/176,412.36 = 77,784.87/x
  3. Step 3: Cross multiply
    117,839.79x = 176,412.36 × 77,784.87
  4. Step 4: Simplify right side
    117,839.79x = 13,722,212,488.99
  5. Step 5: Solve for x
    x = 13,722,212,488.99/117,839.79
  6. Step 6: Final answer
    x = 116,448.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.