Home / 103,827.04-143,282.65-61,385.20

Finding the Fourth Proportional to 103,827.04, 143,282.65 and 61,385.20

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Solution

The fourth proportional to 103,827.04, 143,282.65 and 61,385.20 is: 84,712.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,827.04 : 143,282.65 = 61,385.20 : x
  2. Step 2: Convert to fraction form
    103,827.04/143,282.65 = 61,385.20/x
  3. Step 3: Cross multiply
    103,827.04x = 143,282.65 × 61,385.20
  4. Step 4: Simplify right side
    103,827.04x = 8,795,434,126.78
  5. Step 5: Solve for x
    x = 8,795,434,126.78/103,827.04
  6. Step 6: Final answer
    x = 84,712.37

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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.