Home / 105,153.24-145,111.10-57,406.04

Finding the Fourth Proportional to 105,153.24, 145,111.10 and 57,406.04

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Solution

The fourth proportional to 105,153.24, 145,111.10 and 57,406.04 is: 79,220.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,153.24 : 145,111.10 = 57,406.04 : x
  2. Step 2: Convert to fraction form
    105,153.24/145,111.10 = 57,406.04/x
  3. Step 3: Cross multiply
    105,153.24x = 145,111.10 × 57,406.04
  4. Step 4: Simplify right side
    105,153.24x = 8,330,253,611.04
  5. Step 5: Solve for x
    x = 8,330,253,611.04/105,153.24
  6. Step 6: Final answer
    x = 79,220.13

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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.