Home / 105,571.13-145,688.19-57,826.19

Finding the Fourth Proportional to 105,571.13, 145,688.19 and 57,826.19

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Solution

The fourth proportional to 105,571.13, 145,688.19 and 57,826.19 is: 79,800.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,571.13 : 145,688.19 = 57,826.19 : x
  2. Step 2: Convert to fraction form
    105,571.13/145,688.19 = 57,826.19/x
  3. Step 3: Cross multiply
    105,571.13x = 145,688.19 × 57,826.19
  4. Step 4: Simplify right side
    105,571.13x = 8,424,593,319.92
  5. Step 5: Solve for x
    x = 8,424,593,319.92/105,571.13
  6. Step 6: Final answer
    x = 79,800.16

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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.