Home / 105,239.25-145,233.35-57,495.67

Finding the Fourth Proportional to 105,239.25, 145,233.35 and 57,495.67

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Solution

The fourth proportional to 105,239.25, 145,233.35 and 57,495.67 is: 79,345.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,239.25 : 145,233.35 = 57,495.67 : x
  2. Step 2: Convert to fraction form
    105,239.25/145,233.35 = 57,495.67/x
  3. Step 3: Cross multiply
    105,239.25x = 145,233.35 × 57,495.67
  4. Step 4: Simplify right side
    105,239.25x = 8,350,289,469.99
  5. Step 5: Solve for x
    x = 8,350,289,469.99/105,239.25
  6. Step 6: Final answer
    x = 79,345.77

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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.