Home / 105,317.04-145,391.04-71,504.40

Finding the Fourth Proportional to 105,317.04, 145,391.04 and 71,504.40

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Solution

The fourth proportional to 105,317.04, 145,391.04 and 71,504.40 is: 98,712.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,317.04 : 145,391.04 = 71,504.40 : x
  2. Step 2: Convert to fraction form
    105,317.04/145,391.04 = 71,504.40/x
  3. Step 3: Cross multiply
    105,317.04x = 145,391.04 × 71,504.40
  4. Step 4: Simplify right side
    105,317.04x = 10,396,099,080.58
  5. Step 5: Solve for x
    x = 10,396,099,080.58/105,317.04
  6. Step 6: Final answer
    x = 98,712.41

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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.