Home / 105,571.59-145,688.58-57,173.37

Finding the Fourth Proportional to 105,571.59, 145,688.58 and 57,173.37

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Solution

The fourth proportional to 105,571.59, 145,688.58 and 57,173.37 is: 78,899.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,571.59 : 145,688.58 = 57,173.37 : x
  2. Step 2: Convert to fraction form
    105,571.59/145,688.58 = 57,173.37/x
  3. Step 3: Cross multiply
    105,571.59x = 145,688.58 × 57,173.37
  4. Step 4: Simplify right side
    105,571.59x = 8,329,507,089.11
  5. Step 5: Solve for x
    x = 8,329,507,089.11/105,571.59
  6. Step 6: Final answer
    x = 78,899.13

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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.