Home / 105,185.08-145,160.85-64,336.40

Finding the Fourth Proportional to 105,185.08, 145,160.85 and 64,336.40

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Solution

The fourth proportional to 105,185.08, 145,160.85 and 64,336.40 is: 88,787.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,185.08 : 145,160.85 = 64,336.40 : x
  2. Step 2: Convert to fraction form
    105,185.08/145,160.85 = 64,336.40/x
  3. Step 3: Cross multiply
    105,185.08x = 145,160.85 × 64,336.40
  4. Step 4: Simplify right side
    105,185.08x = 9,339,126,188.26
  5. Step 5: Solve for x
    x = 9,339,126,188.26/105,185.08
  6. Step 6: Final answer
    x = 88,787.56

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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.