Home / 190,130.95-285,476.78-106,055.38

Finding the Fourth Proportional to 190,130.95, 285,476.78 and 106,055.38

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Solution

The fourth proportional to 190,130.95, 285,476.78 and 106,055.38 is: 159,239.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,130.95 : 285,476.78 = 106,055.38 : x
  2. Step 2: Convert to fraction form
    190,130.95/285,476.78 = 106,055.38/x
  3. Step 3: Cross multiply
    190,130.95x = 285,476.78 × 106,055.38
  4. Step 4: Simplify right side
    190,130.95x = 30,276,346,426.42
  5. Step 5: Solve for x
    x = 30,276,346,426.42/190,130.95
  6. Step 6: Final answer
    x = 159,239.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.