Home / 150,543.73-207,759.55-86,885.63

Finding the Fourth Proportional to 150,543.73, 207,759.55 and 86,885.63

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Solution

The fourth proportional to 150,543.73, 207,759.55 and 86,885.63 is: 119,907.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,543.73 : 207,759.55 = 86,885.63 : x
  2. Step 2: Convert to fraction form
    150,543.73/207,759.55 = 86,885.63/x
  3. Step 3: Cross multiply
    150,543.73x = 207,759.55 × 86,885.63
  4. Step 4: Simplify right side
    150,543.73x = 18,051,319,390.27
  5. Step 5: Solve for x
    x = 18,051,319,390.27/150,543.73
  6. Step 6: Final answer
    x = 119,907.48

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1.5x scale

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.