Home / 141,029.45-211,345.26-77,878.00

Finding the Fourth Proportional to 141,029.45, 211,345.26 and 77,878.00

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Solution

The fourth proportional to 141,029.45, 211,345.26 and 77,878.00 is: 116,707.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,029.45 : 211,345.26 = 77,878.00 : x
  2. Step 2: Convert to fraction form
    141,029.45/211,345.26 = 77,878.00/x
  3. Step 3: Cross multiply
    141,029.45x = 211,345.26 × 77,878.00
  4. Step 4: Simplify right side
    141,029.45x = 16,459,145,101.55
  5. Step 5: Solve for x
    x = 16,459,145,101.55/141,029.45
  6. Step 6: Final answer
    x = 116,707.15

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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.