Home / 105,250.35-145,247.54-57,506.70

Finding the Fourth Proportional to 105,250.35, 145,247.54 and 57,506.70

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Solution

The fourth proportional to 105,250.35, 145,247.54 and 57,506.70 is: 79,360.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,250.35 : 145,247.54 = 57,506.70 : x
  2. Step 2: Convert to fraction form
    105,250.35/145,247.54 = 57,506.70/x
  3. Step 3: Cross multiply
    105,250.35x = 145,247.54 × 57,506.70
  4. Step 4: Simplify right side
    105,250.35x = 8,352,706,420.98
  5. Step 5: Solve for x
    x = 8,352,706,420.98/105,250.35
  6. Step 6: Final answer
    x = 79,360.37

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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.