Home / 105,595.02-145,720.38-57,195.86

Finding the Fourth Proportional to 105,595.02, 145,720.38 and 57,195.86

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Solution

The fourth proportional to 105,595.02, 145,720.38 and 57,195.86 is: 78,929.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,595.02 : 145,720.38 = 57,195.86 : x
  2. Step 2: Convert to fraction form
    105,595.02/145,720.38 = 57,195.86/x
  3. Step 3: Cross multiply
    105,595.02x = 145,720.38 × 57,195.86
  4. Step 4: Simplify right side
    105,595.02x = 8,334,601,439.05
  5. Step 5: Solve for x
    x = 8,334,601,439.05/105,595.02
  6. Step 6: Final answer
    x = 78,929.87

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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.