Home / 103,661.79-143,047.35-58,341.66

Finding the Fourth Proportional to 103,661.79, 143,047.35 and 58,341.66

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Solution

The fourth proportional to 103,661.79, 143,047.35 and 58,341.66 is: 80,508.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,661.79 : 143,047.35 = 58,341.66 : x
  2. Step 2: Convert to fraction form
    103,661.79/143,047.35 = 58,341.66/x
  3. Step 3: Cross multiply
    103,661.79x = 143,047.35 × 58,341.66
  4. Step 4: Simplify right side
    103,661.79x = 8,345,619,857.60
  5. Step 5: Solve for x
    x = 8,345,619,857.60/103,661.79
  6. Step 6: Final answer
    x = 80,508.16

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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.