Home / 105,152.11-145,104.43-57,396.23

Finding the Fourth Proportional to 105,152.11, 145,104.43 and 57,396.23

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Solution

The fourth proportional to 105,152.11, 145,104.43 and 57,396.23 is: 79,203.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,152.11 : 145,104.43 = 57,396.23 : x
  2. Step 2: Convert to fraction form
    105,152.11/145,104.43 = 57,396.23/x
  3. Step 3: Cross multiply
    105,152.11x = 145,104.43 × 57,396.23
  4. Step 4: Simplify right side
    105,152.11x = 8,328,447,238.30
  5. Step 5: Solve for x
    x = 8,328,447,238.30/105,152.11
  6. Step 6: Final answer
    x = 79,203.81

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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.