Home / 105,226.24-145,206.64-57,478.92

Finding the Fourth Proportional to 105,226.24, 145,206.64 and 57,478.92

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Solution

The fourth proportional to 105,226.24, 145,206.64 and 57,478.92 is: 79,317.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,226.24 : 145,206.64 = 57,478.92 : x
  2. Step 2: Convert to fraction form
    105,226.24/145,206.64 = 57,478.92/x
  3. Step 3: Cross multiply
    105,226.24x = 145,206.64 × 57,478.92
  4. Step 4: Simplify right side
    105,226.24x = 8,346,320,844.03
  5. Step 5: Solve for x
    x = 8,346,320,844.03/105,226.24
  6. Step 6: Final answer
    x = 79,317.87

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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.