Home / 103,614.12-142,986.06-58,288.68

Finding the Fourth Proportional to 103,614.12, 142,986.06 and 58,288.68

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Solution

The fourth proportional to 103,614.12, 142,986.06 and 58,288.68 is: 80,437.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,614.12 : 142,986.06 = 58,288.68 : x
  2. Step 2: Convert to fraction form
    103,614.12/142,986.06 = 58,288.68/x
  3. Step 3: Cross multiply
    103,614.12x = 142,986.06 × 58,288.68
  4. Step 4: Simplify right side
    103,614.12x = 8,334,468,695.80
  5. Step 5: Solve for x
    x = 8,334,468,695.80/103,614.12
  6. Step 6: Final answer
    x = 80,437.58

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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.