Home / 151,307.13-208,802.10-83,322.75

Finding the Fourth Proportional to 151,307.13, 208,802.10 and 83,322.75

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Solution

The fourth proportional to 151,307.13, 208,802.10 and 83,322.75 is: 114,984.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,307.13 : 208,802.10 = 83,322.75 : x
  2. Step 2: Convert to fraction form
    151,307.13/208,802.10 = 83,322.75/x
  3. Step 3: Cross multiply
    151,307.13x = 208,802.10 × 83,322.75
  4. Step 4: Simplify right side
    151,307.13x = 17,397,965,177.78
  5. Step 5: Solve for x
    x = 17,397,965,177.78/151,307.13
  6. Step 6: Final answer
    x = 114,984.44

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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.