Home / 105,150.68-145,110.13-57,406.04

Finding the Fourth Proportional to 105,150.68, 145,110.13 and 57,406.04

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Solution

The fourth proportional to 105,150.68, 145,110.13 and 57,406.04 is: 79,221.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,150.68 : 145,110.13 = 57,406.04 : x
  2. Step 2: Convert to fraction form
    105,150.68/145,110.13 = 57,406.04/x
  3. Step 3: Cross multiply
    105,150.68x = 145,110.13 × 57,406.04
  4. Step 4: Simplify right side
    105,150.68x = 8,330,197,058.12
  5. Step 5: Solve for x
    x = 8,330,197,058.12/105,150.68
  6. Step 6: Final answer
    x = 79,221.53

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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.