Home / 143,973.06-216,021.96-77,335.44

Finding the Fourth Proportional to 143,973.06, 216,021.96 and 77,335.44

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Solution

The fourth proportional to 143,973.06, 216,021.96 and 77,335.44 is: 116,036.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,973.06 : 216,021.96 = 77,335.44 : x
  2. Step 2: Convert to fraction form
    143,973.06/216,021.96 = 77,335.44/x
  3. Step 3: Cross multiply
    143,973.06x = 216,021.96 × 77,335.44
  4. Step 4: Simplify right side
    143,973.06x = 16,706,153,326.26
  5. Step 5: Solve for x
    x = 16,706,153,326.26/143,973.06
  6. Step 6: Final answer
    x = 116,036.66

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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.