Home / 161,805.07-242,516.98-72,954.55

Finding the Fourth Proportional to 161,805.07, 242,516.98 and 72,954.55

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Solution

The fourth proportional to 161,805.07, 242,516.98 and 72,954.55 is: 109,345.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,805.07 : 242,516.98 = 72,954.55 : x
  2. Step 2: Convert to fraction form
    161,805.07/242,516.98 = 72,954.55/x
  3. Step 3: Cross multiply
    161,805.07x = 242,516.98 × 72,954.55
  4. Step 4: Simplify right side
    161,805.07x = 17,692,717,143.26
  5. Step 5: Solve for x
    x = 17,692,717,143.26/161,805.07
  6. Step 6: Final answer
    x = 109,345.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.