Home / 109,280.44-150,787.47-66,254.86

Finding the Fourth Proportional to 109,280.44, 150,787.47 and 66,254.86

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Solution

The fourth proportional to 109,280.44, 150,787.47 and 66,254.86 is: 91,419.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,280.44 : 150,787.47 = 66,254.86 : x
  2. Step 2: Convert to fraction form
    109,280.44/150,787.47 = 66,254.86/x
  3. Step 3: Cross multiply
    109,280.44x = 150,787.47 × 66,254.86
  4. Step 4: Simplify right side
    109,280.44x = 9,990,402,714.60
  5. Step 5: Solve for x
    x = 9,990,402,714.60/109,280.44
  6. Step 6: Final answer
    x = 91,419.86

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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.