Home / 118,127.96-162,668.16-105,548.12

Finding the Fourth Proportional to 118,127.96, 162,668.16 and 105,548.12

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Solution

The fourth proportional to 118,127.96, 162,668.16 and 105,548.12 is: 145,345.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,127.96 : 162,668.16 = 105,548.12 : x
  2. Step 2: Convert to fraction form
    118,127.96/162,668.16 = 105,548.12/x
  3. Step 3: Cross multiply
    118,127.96x = 162,668.16 × 105,548.12
  4. Step 4: Simplify right side
    118,127.96x = 17,169,318,471.86
  5. Step 5: Solve for x
    x = 17,169,318,471.86/118,127.96
  6. Step 6: Final answer
    x = 145,345.09

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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.