Home / 103,630.85-143,010.57-58,918.85

Finding the Fourth Proportional to 103,630.85, 143,010.57 and 58,918.85

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Solution

The fourth proportional to 103,630.85, 143,010.57 and 58,918.85 is: 81,308.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,630.85 : 143,010.57 = 58,918.85 : x
  2. Step 2: Convert to fraction form
    103,630.85/143,010.57 = 58,918.85/x
  3. Step 3: Cross multiply
    103,630.85x = 143,010.57 × 58,918.85
  4. Step 4: Simplify right side
    103,630.85x = 8,426,018,027.65
  5. Step 5: Solve for x
    x = 8,426,018,027.65/103,630.85
  6. Step 6: Final answer
    x = 81,308.01

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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.