Home / 103,670.47-143,072.48-58,352.79

Finding the Fourth Proportional to 103,670.47, 143,072.48 and 58,352.79

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Solution

The fourth proportional to 103,670.47, 143,072.48 and 58,352.79 is: 80,530.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,670.47 : 143,072.48 = 58,352.79 : x
  2. Step 2: Convert to fraction form
    103,670.47/143,072.48 = 58,352.79/x
  3. Step 3: Cross multiply
    103,670.47x = 143,072.48 × 58,352.79
  4. Step 4: Simplify right side
    103,670.47x = 8,348,678,380.22
  5. Step 5: Solve for x
    x = 8,348,678,380.22/103,670.47
  6. Step 6: Final answer
    x = 80,530.92

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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.