Home / 156,019.40-234,029.10-129,775.40

Finding the Fourth Proportional to 156,019.40, 234,029.10 and 129,775.40

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Solution

The fourth proportional to 156,019.40, 234,029.10 and 129,775.40 is: 194,663.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,019.40 : 234,029.10 = 129,775.40 : x
  2. Step 2: Convert to fraction form
    156,019.40/234,029.10 = 129,775.40/x
  3. Step 3: Cross multiply
    156,019.40x = 234,029.10 × 129,775.40
  4. Step 4: Simplify right side
    156,019.40x = 30,371,220,064.14
  5. Step 5: Solve for x
    x = 30,371,220,064.14/156,019.40
  6. Step 6: Final answer
    x = 194,663.10

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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.