Home / 152,040.20-228,060.30-77,131.40

Finding the Fourth Proportional to 152,040.20, 228,060.30 and 77,131.40

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Solution

The fourth proportional to 152,040.20, 228,060.30 and 77,131.40 is: 115,697.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,040.20 : 228,060.30 = 77,131.40 : x
  2. Step 2: Convert to fraction form
    152,040.20/228,060.30 = 77,131.40/x
  3. Step 3: Cross multiply
    152,040.20x = 228,060.30 × 77,131.40
  4. Step 4: Simplify right side
    152,040.20x = 17,590,610,223.42
  5. Step 5: Solve for x
    x = 17,590,610,223.42/152,040.20
  6. Step 6: Final answer
    x = 115,697.10

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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.