Home / 211,125.06-316,643.82-77,914.26

Finding the Fourth Proportional to 211,125.06, 316,643.82 and 77,914.26

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Solution

The fourth proportional to 211,125.06, 316,643.82 and 77,914.26 is: 116,855.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,125.06 : 316,643.82 = 77,914.26 : x
  2. Step 2: Convert to fraction form
    211,125.06/316,643.82 = 77,914.26/x
  3. Step 3: Cross multiply
    211,125.06x = 316,643.82 × 77,914.26
  4. Step 4: Simplify right side
    211,125.06x = 24,671,068,918.87
  5. Step 5: Solve for x
    x = 24,671,068,918.87/211,125.06
  6. Step 6: Final answer
    x = 116,855.24

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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.