Home / 103,518.09-142,837.14-58,189.77

Finding the Fourth Proportional to 103,518.09, 142,837.14 and 58,189.77

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Solution

The fourth proportional to 103,518.09, 142,837.14 and 58,189.77 is: 80,291.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,518.09 : 142,837.14 = 58,189.77 : x
  2. Step 2: Convert to fraction form
    103,518.09/142,837.14 = 58,189.77/x
  3. Step 3: Cross multiply
    103,518.09x = 142,837.14 × 58,189.77
  4. Step 4: Simplify right side
    103,518.09x = 8,311,660,324.06
  5. Step 5: Solve for x
    x = 8,311,660,324.06/103,518.09
  6. Step 6: Final answer
    x = 80,291.86

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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.