Home / 105,637.14-145,782.63-57,893.49

Finding the Fourth Proportional to 105,637.14, 145,782.63 and 57,893.49

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Solution

The fourth proportional to 105,637.14, 145,782.63 and 57,893.49 is: 79,894.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,637.14 : 145,782.63 = 57,893.49 : x
  2. Step 2: Convert to fraction form
    105,637.14/145,782.63 = 57,893.49/x
  3. Step 3: Cross multiply
    105,637.14x = 145,782.63 × 57,893.49
  4. Step 4: Simplify right side
    105,637.14x = 8,439,865,232.08
  5. Step 5: Solve for x
    x = 8,439,865,232.08/105,637.14
  6. Step 6: Final answer
    x = 79,894.87

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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.