Home / 141,448.98-211,980.24-78,175.38

Finding the Fourth Proportional to 141,448.98, 211,980.24 and 78,175.38

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Solution

The fourth proportional to 141,448.98, 211,980.24 and 78,175.38 is: 117,156.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,448.98 : 211,980.24 = 78,175.38 : x
  2. Step 2: Convert to fraction form
    141,448.98/211,980.24 = 78,175.38/x
  3. Step 3: Cross multiply
    141,448.98x = 211,980.24 × 78,175.38
  4. Step 4: Simplify right side
    141,448.98x = 16,571,635,814.49
  5. Step 5: Solve for x
    x = 16,571,635,814.49/141,448.98
  6. Step 6: Final answer
    x = 117,156.28

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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.