Home / 141,038.10-211,515-74,441.52

Finding the Fourth Proportional to 141,038.10, 211,515 and 74,441.52

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Solution

The fourth proportional to 141,038.10, 211,515 and 74,441.52 is: 111,640.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,038.10 : 211,515 = 74,441.52 : x
  2. Step 2: Convert to fraction form
    141,038.10/211,515 = 74,441.52/x
  3. Step 3: Cross multiply
    141,038.10x = 211,515 × 74,441.52
  4. Step 4: Simplify right side
    141,038.10x = 15,745,498,102.80
  5. Step 5: Solve for x
    x = 15,745,498,102.80/141,038.10
  6. Step 6: Final answer
    x = 111,640.03

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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.