Home / 210,849.33-316,071-77,656.95

Finding the Fourth Proportional to 210,849.33, 316,071 and 77,656.95

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Solution

The fourth proportional to 210,849.33, 316,071 and 77,656.95 is: 116,410.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,849.33 : 316,071 = 77,656.95 : x
  2. Step 2: Convert to fraction form
    210,849.33/316,071 = 77,656.95/x
  3. Step 3: Cross multiply
    210,849.33x = 316,071 × 77,656.95
  4. Step 4: Simplify right side
    210,849.33x = 24,545,109,843.45
  5. Step 5: Solve for x
    x = 24,545,109,843.45/210,849.33
  6. Step 6: Final answer
    x = 116,410.66

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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.