Home / 100,947.02-151,442.13-30,831.50

Finding the Fourth Proportional to 100,947.02, 151,442.13 and 30,831.50

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Solution

The fourth proportional to 100,947.02, 151,442.13 and 30,831.50 is: 46,253.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,947.02 : 151,442.13 = 30,831.50 : x
  2. Step 2: Convert to fraction form
    100,947.02/151,442.13 = 30,831.50/x
  3. Step 3: Cross multiply
    100,947.02x = 151,442.13 × 30,831.50
  4. Step 4: Simplify right side
    100,947.02x = 4,669,188,031.10
  5. Step 5: Solve for x
    x = 4,669,188,031.10/100,947.02
  6. Step 6: Final answer
    x = 46,253.85

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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.