Home / 120,031.03-180,073.33-45,151.80

Finding the Fourth Proportional to 120,031.03, 180,073.33 and 45,151.80

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Solution

The fourth proportional to 120,031.03, 180,073.33 and 45,151.80 is: 67,737.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,031.03 : 180,073.33 = 45,151.80 : x
  2. Step 2: Convert to fraction form
    120,031.03/180,073.33 = 45,151.80/x
  3. Step 3: Cross multiply
    120,031.03x = 180,073.33 × 45,151.80
  4. Step 4: Simplify right side
    120,031.03x = 8,130,634,981.49
  5. Step 5: Solve for x
    x = 8,130,634,981.49/120,031.03
  6. Step 6: Final answer
    x = 67,737.78

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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.