Home / 152,126.99-228,121.22-81,031.57

Finding the Fourth Proportional to 152,126.99, 228,121.22 and 81,031.57

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Solution

The fourth proportional to 152,126.99, 228,121.22 and 81,031.57 is: 121,510.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,126.99 : 228,121.22 = 81,031.57 : x
  2. Step 2: Convert to fraction form
    152,126.99/228,121.22 = 81,031.57/x
  3. Step 3: Cross multiply
    152,126.99x = 228,121.22 × 81,031.57
  4. Step 4: Simplify right side
    152,126.99x = 18,485,020,606.92
  5. Step 5: Solve for x
    x = 18,485,020,606.92/152,126.99
  6. Step 6: Final answer
    x = 121,510.46

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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.