Home / 103,661.52-143,051.55-58,339.56

Finding the Fourth Proportional to 103,661.52, 143,051.55 and 58,339.56

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Solution

The fourth proportional to 103,661.52, 143,051.55 and 58,339.56 is: 80,507.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,661.52 : 143,051.55 = 58,339.56 : x
  2. Step 2: Convert to fraction form
    103,661.52/143,051.55 = 58,339.56/x
  3. Step 3: Cross multiply
    103,661.52x = 143,051.55 × 58,339.56
  4. Step 4: Simplify right side
    103,661.52x = 8,345,564,484.32
  5. Step 5: Solve for x
    x = 8,345,564,484.32/103,661.52
  6. Step 6: Final answer
    x = 80,507.83

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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.