Home / 103,667.20-143,060.58-58,345.51

Finding the Fourth Proportional to 103,667.20, 143,060.58 and 58,345.51

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Solution

The fourth proportional to 103,667.20, 143,060.58 and 58,345.51 is: 80,516.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,667.20 : 143,060.58 = 58,345.51 : x
  2. Step 2: Convert to fraction form
    103,667.20/143,060.58 = 58,345.51/x
  3. Step 3: Cross multiply
    103,667.20x = 143,060.58 × 58,345.51
  4. Step 4: Simplify right side
    103,667.20x = 8,346,942,501.00
  5. Step 5: Solve for x
    x = 8,346,942,501.00/103,667.20
  6. Step 6: Final answer
    x = 80,516.72

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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.