Home / 157,439.20-236,158.80-39,109.60

Finding the Fourth Proportional to 157,439.20, 236,158.80 and 39,109.60

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Solution

The fourth proportional to 157,439.20, 236,158.80 and 39,109.60 is: 58,664.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,439.20 : 236,158.80 = 39,109.60 : x
  2. Step 2: Convert to fraction form
    157,439.20/236,158.80 = 39,109.60/x
  3. Step 3: Cross multiply
    157,439.20x = 236,158.80 × 39,109.60
  4. Step 4: Simplify right side
    157,439.20x = 9,236,076,204.48
  5. Step 5: Solve for x
    x = 9,236,076,204.48/157,439.20
  6. Step 6: Final answer
    x = 58,664.40

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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.