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Finding the Fourth Proportional to 145,124.80, 200,272.60 and 80,594.08

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Solution

The fourth proportional to 145,124.80, 200,272.60 and 80,594.08 is: 111,220.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,124.80 : 200,272.60 = 80,594.08 : x
  2. Step 2: Convert to fraction form
    145,124.80/200,272.60 = 80,594.08/x
  3. Step 3: Cross multiply
    145,124.80x = 200,272.60 × 80,594.08
  4. Step 4: Simplify right side
    145,124.80x = 16,140,785,946.21
  5. Step 5: Solve for x
    x = 16,140,785,946.21/145,124.80
  6. Step 6: Final answer
    x = 111,220.04

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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.