Home / 120,177.77-180,139.53-45,265.50

Finding the Fourth Proportional to 120,177.77, 180,139.53 and 45,265.50

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Solution

The fourth proportional to 120,177.77, 180,139.53 and 45,265.50 is: 67,850.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,177.77 : 180,139.53 = 45,265.50 : x
  2. Step 2: Convert to fraction form
    120,177.77/180,139.53 = 45,265.50/x
  3. Step 3: Cross multiply
    120,177.77x = 180,139.53 × 45,265.50
  4. Step 4: Simplify right side
    120,177.77x = 8,154,105,895.22
  5. Step 5: Solve for x
    x = 8,154,105,895.22/120,177.77
  6. Step 6: Final answer
    x = 67,850.37

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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.