Home / 156,289.80-234,434.70-51,119.40

Finding the Fourth Proportional to 156,289.80, 234,434.70 and 51,119.40

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Solution

The fourth proportional to 156,289.80, 234,434.70 and 51,119.40 is: 76,679.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,289.80 : 234,434.70 = 51,119.40 : x
  2. Step 2: Convert to fraction form
    156,289.80/234,434.70 = 51,119.40/x
  3. Step 3: Cross multiply
    156,289.80x = 234,434.70 × 51,119.40
  4. Step 4: Simplify right side
    156,289.80x = 11,984,161,203.18
  5. Step 5: Solve for x
    x = 11,984,161,203.18/156,289.80
  6. Step 6: Final answer
    x = 76,679.10

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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.