Home / 151,748.94-209,425.14-83,779.02

Finding the Fourth Proportional to 151,748.94, 209,425.14 and 83,779.02

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Solution

The fourth proportional to 151,748.94, 209,425.14 and 83,779.02 is: 115,621.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,748.94 : 209,425.14 = 83,779.02 : x
  2. Step 2: Convert to fraction form
    151,748.94/209,425.14 = 83,779.02/x
  3. Step 3: Cross multiply
    151,748.94x = 209,425.14 × 83,779.02
  4. Step 4: Simplify right side
    151,748.94x = 17,545,432,992.56
  5. Step 5: Solve for x
    x = 17,545,432,992.56/151,748.94
  6. Step 6: Final answer
    x = 115,621.45

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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.