Home / 105,525.92-145,624.66-57,126.76

Finding the Fourth Proportional to 105,525.92, 145,624.66 and 57,126.76

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Solution

The fourth proportional to 105,525.92, 145,624.66 and 57,126.76 is: 78,834.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,525.92 : 145,624.66 = 57,126.76 : x
  2. Step 2: Convert to fraction form
    105,525.92/145,624.66 = 57,126.76/x
  3. Step 3: Cross multiply
    105,525.92x = 145,624.66 × 57,126.76
  4. Step 4: Simplify right side
    105,525.92x = 8,319,065,065.26
  5. Step 5: Solve for x
    x = 8,319,065,065.26/105,525.92
  6. Step 6: Final answer
    x = 78,834.33

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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.