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Finding the Fourth Proportional to 109,173.60, 163,751.76 and 39,045.60

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Solution

The fourth proportional to 109,173.60, 163,751.76 and 39,045.60 is: 58,565.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,173.60 : 163,751.76 = 39,045.60 : x
  2. Step 2: Convert to fraction form
    109,173.60/163,751.76 = 39,045.60/x
  3. Step 3: Cross multiply
    109,173.60x = 163,751.76 × 39,045.60
  4. Step 4: Simplify right side
    109,173.60x = 6,393,785,720.26
  5. Step 5: Solve for x
    x = 6,393,785,720.26/109,173.60
  6. Step 6: Final answer
    x = 58,565.31

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1.5x scale

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.