Home / 105,566.67-145,681.98-57,820.14

Finding the Fourth Proportional to 105,566.67, 145,681.98 and 57,820.14

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Solution

The fourth proportional to 105,566.67, 145,681.98 and 57,820.14 is: 79,791.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,566.67 : 145,681.98 = 57,820.14 : x
  2. Step 2: Convert to fraction form
    105,566.67/145,681.98 = 57,820.14/x
  3. Step 3: Cross multiply
    105,566.67x = 145,681.98 × 57,820.14
  4. Step 4: Simplify right side
    105,566.67x = 8,423,352,479.08
  5. Step 5: Solve for x
    x = 8,423,352,479.08/105,566.67
  6. Step 6: Final answer
    x = 79,791.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.