Home / 105,230.27-145,220.96-57,486.69

Finding the Fourth Proportional to 105,230.27, 145,220.96 and 57,486.69

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Solution

The fourth proportional to 105,230.27, 145,220.96 and 57,486.69 is: 79,333.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,230.27 : 145,220.96 = 57,486.69 : x
  2. Step 2: Convert to fraction form
    105,230.27/145,220.96 = 57,486.69/x
  3. Step 3: Cross multiply
    105,230.27x = 145,220.96 × 57,486.69
  4. Step 4: Simplify right side
    105,230.27x = 8,348,271,295.48
  5. Step 5: Solve for x
    x = 8,348,271,295.48/105,230.27
  6. Step 6: Final answer
    x = 79,333.37

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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.