Home / 105,181.73-145,154.27-57,438.71

Finding the Fourth Proportional to 105,181.73, 145,154.27 and 57,438.71

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Solution

The fourth proportional to 105,181.73, 145,154.27 and 57,438.71 is: 79,267.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,181.73 : 145,154.27 = 57,438.71 : x
  2. Step 2: Convert to fraction form
    105,181.73/145,154.27 = 57,438.71/x
  3. Step 3: Cross multiply
    105,181.73x = 145,154.27 × 57,438.71
  4. Step 4: Simplify right side
    105,181.73x = 8,337,473,732.60
  5. Step 5: Solve for x
    x = 8,337,473,732.60/105,181.73
  6. Step 6: Final answer
    x = 79,267.32

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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.