Home / 151,429.25-208,971.93-83,446.20

Finding the Fourth Proportional to 151,429.25, 208,971.93 and 83,446.20

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Solution

The fourth proportional to 151,429.25, 208,971.93 and 83,446.20 is: 115,155.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,429.25 : 208,971.93 = 83,446.20 : x
  2. Step 2: Convert to fraction form
    151,429.25/208,971.93 = 83,446.20/x
  3. Step 3: Cross multiply
    151,429.25x = 208,971.93 × 83,446.20
  4. Step 4: Simplify right side
    151,429.25x = 17,437,913,899.95
  5. Step 5: Solve for x
    x = 17,437,913,899.95/151,429.25
  6. Step 6: Final answer
    x = 115,155.52

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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.