Home / 151,307.51-208,788.28-83,320.44

Finding the Fourth Proportional to 151,307.51, 208,788.28 and 83,320.44

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Solution

The fourth proportional to 151,307.51, 208,788.28 and 83,320.44 is: 114,973.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,307.51 : 208,788.28 = 83,320.44 : x
  2. Step 2: Convert to fraction form
    151,307.51/208,788.28 = 83,320.44/x
  3. Step 3: Cross multiply
    151,307.51x = 208,788.28 × 83,320.44
  4. Step 4: Simplify right side
    151,307.51x = 17,396,331,356.44
  5. Step 5: Solve for x
    x = 17,396,331,356.44/151,307.51
  6. Step 6: Final answer
    x = 114,973.35

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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.