Home / 103,630.19-143,008.94-58,918.19

Finding the Fourth Proportional to 103,630.19, 143,008.94 and 58,918.19

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Solution

The fourth proportional to 103,630.19, 143,008.94 and 58,918.19 is: 81,306.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,630.19 : 143,008.94 = 58,918.19 : x
  2. Step 2: Convert to fraction form
    103,630.19/143,008.94 = 58,918.19/x
  3. Step 3: Cross multiply
    103,630.19x = 143,008.94 × 58,918.19
  4. Step 4: Simplify right side
    103,630.19x = 8,425,827,898.62
  5. Step 5: Solve for x
    x = 8,425,827,898.62/103,630.19
  6. Step 6: Final answer
    x = 81,306.69

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1.5x scale

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.