Home / 105,265.04-145,221.96-68,956.16

Finding the Fourth Proportional to 105,265.04, 145,221.96 and 68,956.16

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Solution

The fourth proportional to 105,265.04, 145,221.96 and 68,956.16 is: 95,130.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,265.04 : 145,221.96 = 68,956.16 : x
  2. Step 2: Convert to fraction form
    105,265.04/145,221.96 = 68,956.16/x
  3. Step 3: Cross multiply
    105,265.04x = 145,221.96 × 68,956.16
  4. Step 4: Simplify right side
    105,265.04x = 10,013,948,709.27
  5. Step 5: Solve for x
    x = 10,013,948,709.27/105,265.04
  6. Step 6: Final answer
    x = 95,130.81

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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.