Home / 120,030.96-180,073.23-45,151.74

Finding the Fourth Proportional to 120,030.96, 180,073.23 and 45,151.74

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Solution

The fourth proportional to 120,030.96, 180,073.23 and 45,151.74 is: 67,737.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,030.96 : 180,073.23 = 45,151.74 : x
  2. Step 2: Convert to fraction form
    120,030.96/180,073.23 = 45,151.74/x
  3. Step 3: Cross multiply
    120,030.96x = 180,073.23 × 45,151.74
  4. Step 4: Simplify right side
    120,030.96x = 8,130,619,661.92
  5. Step 5: Solve for x
    x = 8,130,619,661.92/120,030.96
  6. Step 6: Final answer
    x = 67,737.69

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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.