Home / 105,313.45-145,334.86-57,566.79

Finding the Fourth Proportional to 105,313.45, 145,334.86 and 57,566.79

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Solution

The fourth proportional to 105,313.45, 145,334.86 and 57,566.79 is: 79,443.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,313.45 : 145,334.86 = 57,566.79 : x
  2. Step 2: Convert to fraction form
    105,313.45/145,334.86 = 57,566.79/x
  3. Step 3: Cross multiply
    105,313.45x = 145,334.86 × 57,566.79
  4. Step 4: Simplify right side
    105,313.45x = 8,366,462,300.99
  5. Step 5: Solve for x
    x = 8,366,462,300.99/105,313.45
  6. Step 6: Final answer
    x = 79,443.44

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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.