Home / 152,038.20-228,057.30-77,129.40

Finding the Fourth Proportional to 152,038.20, 228,057.30 and 77,129.40

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Solution

The fourth proportional to 152,038.20, 228,057.30 and 77,129.40 is: 115,694.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,038.20 : 228,057.30 = 77,129.40 : x
  2. Step 2: Convert to fraction form
    152,038.20/228,057.30 = 77,129.40/x
  3. Step 3: Cross multiply
    152,038.20x = 228,057.30 × 77,129.40
  4. Step 4: Simplify right side
    152,038.20x = 17,589,922,714.62
  5. Step 5: Solve for x
    x = 17,589,922,714.62/152,038.20
  6. Step 6: Final answer
    x = 115,694.10

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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.