Home / 105,257.54-145,257.50-57,513.84

Finding the Fourth Proportional to 105,257.54, 145,257.50 and 57,513.84

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Solution

The fourth proportional to 105,257.54, 145,257.50 and 57,513.84 is: 79,370.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,257.54 : 145,257.50 = 57,513.84 : x
  2. Step 2: Convert to fraction form
    105,257.54/145,257.50 = 57,513.84/x
  3. Step 3: Cross multiply
    105,257.54x = 145,257.50 × 57,513.84
  4. Step 4: Simplify right side
    105,257.54x = 8,354,316,613.80
  5. Step 5: Solve for x
    x = 8,354,316,613.80/105,257.54
  6. Step 6: Final answer
    x = 79,370.24

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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.