Home / 151,440.90-208,987.47-83,458.41

Finding the Fourth Proportional to 151,440.90, 208,987.47 and 83,458.41

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Solution

The fourth proportional to 151,440.90, 208,987.47 and 83,458.41 is: 115,172.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,440.90 : 208,987.47 = 83,458.41 : x
  2. Step 2: Convert to fraction form
    151,440.90/208,987.47 = 83,458.41/x
  3. Step 3: Cross multiply
    151,440.90x = 208,987.47 × 83,458.41
  4. Step 4: Simplify right side
    151,440.90x = 17,441,761,956.12
  5. Step 5: Solve for x
    x = 17,441,761,956.12/151,440.90
  6. Step 6: Final answer
    x = 115,172.07

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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.