Home / 190,195.12-262,484.04-105,320.08

Finding the Fourth Proportional to 190,195.12, 262,484.04 and 105,320.08

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Solution

The fourth proportional to 190,195.12, 262,484.04 and 105,320.08 is: 145,349.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,195.12 : 262,484.04 = 105,320.08 : x
  2. Step 2: Convert to fraction form
    190,195.12/262,484.04 = 105,320.08/x
  3. Step 3: Cross multiply
    190,195.12x = 262,484.04 × 105,320.08
  4. Step 4: Simplify right side
    190,195.12x = 27,644,840,091.52
  5. Step 5: Solve for x
    x = 27,644,840,091.52/190,195.12
  6. Step 6: Final answer
    x = 145,349.89

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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.