Home / 105,240.25-145,234.73-57,496.67

Finding the Fourth Proportional to 105,240.25, 145,234.73 and 57,496.67

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Solution

The fourth proportional to 105,240.25, 145,234.73 and 57,496.67 is: 79,347.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,240.25 : 145,234.73 = 57,496.67 : x
  2. Step 2: Convert to fraction form
    105,240.25/145,234.73 = 57,496.67/x
  3. Step 3: Cross multiply
    105,240.25x = 145,234.73 × 57,496.67
  4. Step 4: Simplify right side
    105,240.25x = 8,350,513,343.35
  5. Step 5: Solve for x
    x = 8,350,513,343.35/105,240.25
  6. Step 6: Final answer
    x = 79,347.14

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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.