Home / 151,424.80-208,975.52-83,441.74

Finding the Fourth Proportional to 151,424.80, 208,975.52 and 83,441.74

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Solution

The fourth proportional to 151,424.80, 208,975.52 and 83,441.74 is: 115,154.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,424.80 : 208,975.52 = 83,441.74 : x
  2. Step 2: Convert to fraction form
    151,424.80/208,975.52 = 83,441.74/x
  3. Step 3: Cross multiply
    151,424.80x = 208,975.52 × 83,441.74
  4. Step 4: Simplify right side
    151,424.80x = 17,437,281,006.20
  5. Step 5: Solve for x
    x = 17,437,281,006.20/151,424.80
  6. Step 6: Final answer
    x = 115,154.72

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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.