Home / 103,969.73-143,478.27-56,223.10

Finding the Fourth Proportional to 103,969.73, 143,478.27 and 56,223.10

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Solution

The fourth proportional to 103,969.73, 143,478.27 and 56,223.10 is: 77,587.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,969.73 : 143,478.27 = 56,223.10 : x
  2. Step 2: Convert to fraction form
    103,969.73/143,478.27 = 56,223.10/x
  3. Step 3: Cross multiply
    103,969.73x = 143,478.27 × 56,223.10
  4. Step 4: Simplify right side
    103,969.73x = 8,066,793,122.04
  5. Step 5: Solve for x
    x = 8,066,793,122.04/103,969.73
  6. Step 6: Final answer
    x = 77,587.90

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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.