Home / 120,029.65-180,071.27-45,150.41

Finding the Fourth Proportional to 120,029.65, 180,071.27 and 45,150.41

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Solution

The fourth proportional to 120,029.65, 180,071.27 and 45,150.41 is: 67,735.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,029.65 : 180,071.27 = 45,150.41 : x
  2. Step 2: Convert to fraction form
    120,029.65/180,071.27 = 45,150.41/x
  3. Step 3: Cross multiply
    120,029.65x = 180,071.27 × 45,150.41
  4. Step 4: Simplify right side
    120,029.65x = 8,130,291,894.15
  5. Step 5: Solve for x
    x = 8,130,291,894.15/120,029.65
  6. Step 6: Final answer
    x = 67,735.70

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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.