Home / 105,293.57-145,302.96-57,547.26

Finding the Fourth Proportional to 105,293.57, 145,302.96 and 57,547.26

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Solution

The fourth proportional to 105,293.57, 145,302.96 and 57,547.26 is: 79,414.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,293.57 : 145,302.96 = 57,547.26 : x
  2. Step 2: Convert to fraction form
    105,293.57/145,302.96 = 57,547.26/x
  3. Step 3: Cross multiply
    105,293.57x = 145,302.96 × 57,547.26
  4. Step 4: Simplify right side
    105,293.57x = 8,361,786,491.37
  5. Step 5: Solve for x
    x = 8,361,786,491.37/105,293.57
  6. Step 6: Final answer
    x = 79,414.03

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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.