Home / 103,662.79-143,048.73-58,342.66

Finding the Fourth Proportional to 103,662.79, 143,048.73 and 58,342.66

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Solution

The fourth proportional to 103,662.79, 143,048.73 and 58,342.66 is: 80,509.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,662.79 : 143,048.73 = 58,342.66 : x
  2. Step 2: Convert to fraction form
    103,662.79/143,048.73 = 58,342.66/x
  3. Step 3: Cross multiply
    103,662.79x = 143,048.73 × 58,342.66
  4. Step 4: Simplify right side
    103,662.79x = 8,345,843,417.82
  5. Step 5: Solve for x
    x = 8,345,843,417.82/103,662.79
  6. Step 6: Final answer
    x = 80,509.54

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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.