Home / 109,126.64-163,688.70-30,237.92

Finding the Fourth Proportional to 109,126.64, 163,688.70 and 30,237.92

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Solution

The fourth proportional to 109,126.64, 163,688.70 and 30,237.92 is: 45,356.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,126.64 : 163,688.70 = 30,237.92 : x
  2. Step 2: Convert to fraction form
    109,126.64/163,688.70 = 30,237.92/x
  3. Step 3: Cross multiply
    109,126.64x = 163,688.70 × 30,237.92
  4. Step 4: Simplify right side
    109,126.64x = 4,949,605,815.50
  5. Step 5: Solve for x
    x = 4,949,605,815.50/109,126.64
  6. Step 6: Final answer
    x = 45,356.53

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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.