Home / 105,448.08-145,520.68-57,701.40

Finding the Fourth Proportional to 105,448.08, 145,520.68 and 57,701.40

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Solution

The fourth proportional to 105,448.08, 145,520.68 and 57,701.40 is: 79,629.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,448.08 : 145,520.68 = 57,701.40 : x
  2. Step 2: Convert to fraction form
    105,448.08/145,520.68 = 57,701.40/x
  3. Step 3: Cross multiply
    105,448.08x = 145,520.68 × 57,701.40
  4. Step 4: Simplify right side
    105,448.08x = 8,396,746,964.95
  5. Step 5: Solve for x
    x = 8,396,746,964.95/105,448.08
  6. Step 6: Final answer
    x = 79,629.21

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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.