Home / 141,004.80-211,881.60-77,875.20

Finding the Fourth Proportional to 141,004.80, 211,881.60 and 77,875.20

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Solution

The fourth proportional to 141,004.80, 211,881.60 and 77,875.20 is: 117,019.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,004.80 : 211,881.60 = 77,875.20 : x
  2. Step 2: Convert to fraction form
    141,004.80/211,881.60 = 77,875.20/x
  3. Step 3: Cross multiply
    141,004.80x = 211,881.60 × 77,875.20
  4. Step 4: Simplify right side
    141,004.80x = 16,500,321,976.32
  5. Step 5: Solve for x
    x = 16,500,321,976.32/141,004.80
  6. Step 6: Final answer
    x = 117,019.58

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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.