Home / 105,250.30-145,247.50-57,506.60

Finding the Fourth Proportional to 105,250.30, 145,247.50 and 57,506.60

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Solution

The fourth proportional to 105,250.30, 145,247.50 and 57,506.60 is: 79,360.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,250.30 : 145,247.50 = 57,506.60 : x
  2. Step 2: Convert to fraction form
    105,250.30/145,247.50 = 57,506.60/x
  3. Step 3: Cross multiply
    105,250.30x = 145,247.50 × 57,506.60
  4. Step 4: Simplify right side
    105,250.30x = 8,352,689,883.50
  5. Step 5: Solve for x
    x = 8,352,689,883.50/105,250.30
  6. Step 6: Final answer
    x = 79,360.25

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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.