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Finding the Fourth Proportional to 163,775.76, 245,663.76 and 45,447.21

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Solution

The fourth proportional to 163,775.76, 245,663.76 and 45,447.21 is: 68,170.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,775.76 : 245,663.76 = 45,447.21 : x
  2. Step 2: Convert to fraction form
    163,775.76/245,663.76 = 45,447.21/x
  3. Step 3: Cross multiply
    163,775.76x = 245,663.76 × 45,447.21
  4. Step 4: Simplify right side
    163,775.76x = 11,164,732,262.87
  5. Step 5: Solve for x
    x = 11,164,732,262.87/163,775.76
  6. Step 6: Final answer
    x = 68,170.85

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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.