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Finding the Fourth Proportional to 98,468.93, 147,725.37 and 28,342.78

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Solution

The fourth proportional to 98,468.93, 147,725.37 and 28,342.78 is: 42,520.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,468.93 : 147,725.37 = 28,342.78 : x
  2. Step 2: Convert to fraction form
    98,468.93/147,725.37 = 28,342.78/x
  3. Step 3: Cross multiply
    98,468.93x = 147,725.37 × 28,342.78
  4. Step 4: Simplify right side
    98,468.93x = 4,186,947,293.02
  5. Step 5: Solve for x
    x = 4,186,947,293.02/98,468.93
  6. Step 6: Final answer
    x = 42,520.49

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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.