Home / 156,010.40-234,015.60-103,479.20

Finding the Fourth Proportional to 156,010.40, 234,015.60 and 103,479.20

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Solution

The fourth proportional to 156,010.40, 234,015.60 and 103,479.20 is: 155,218.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,010.40 : 234,015.60 = 103,479.20 : x
  2. Step 2: Convert to fraction form
    156,010.40/234,015.60 = 103,479.20/x
  3. Step 3: Cross multiply
    156,010.40x = 234,015.60 × 103,479.20
  4. Step 4: Simplify right side
    156,010.40x = 24,215,747,075.52
  5. Step 5: Solve for x
    x = 24,215,747,075.52/156,010.40
  6. Step 6: Final answer
    x = 155,218.80

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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.