Home / 105,254.39-145,249.36-57,506.71

Finding the Fourth Proportional to 105,254.39, 145,249.36 and 57,506.71

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Solution

The fourth proportional to 105,254.39, 145,249.36 and 57,506.71 is: 79,358.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,254.39 : 145,249.36 = 57,506.71 : x
  2. Step 2: Convert to fraction form
    105,254.39/145,249.36 = 57,506.71/x
  3. Step 3: Cross multiply
    105,254.39x = 145,249.36 × 57,506.71
  4. Step 4: Simplify right side
    105,254.39x = 8,352,812,823.21
  5. Step 5: Solve for x
    x = 8,352,812,823.21/105,254.39
  6. Step 6: Final answer
    x = 79,358.33

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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.