Home / 105,069.47-144,995.69-57,322.80

Finding the Fourth Proportional to 105,069.47, 144,995.69 and 57,322.80

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Solution

The fourth proportional to 105,069.47, 144,995.69 and 57,322.80 is: 79,105.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,069.47 : 144,995.69 = 57,322.80 : x
  2. Step 2: Convert to fraction form
    105,069.47/144,995.69 = 57,322.80/x
  3. Step 3: Cross multiply
    105,069.47x = 144,995.69 × 57,322.80
  4. Step 4: Simplify right side
    105,069.47x = 8,311,558,652.12
  5. Step 5: Solve for x
    x = 8,311,558,652.12/105,069.47
  6. Step 6: Final answer
    x = 79,105.37

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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.