Home / 190,238.17-285,376.14-70,326.55

Finding the Fourth Proportional to 190,238.17, 285,376.14 and 70,326.55

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Solution

The fourth proportional to 190,238.17, 285,376.14 and 70,326.55 is: 105,496.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,238.17 : 285,376.14 = 70,326.55 : x
  2. Step 2: Convert to fraction form
    190,238.17/285,376.14 = 70,326.55/x
  3. Step 3: Cross multiply
    190,238.17x = 285,376.14 × 70,326.55
  4. Step 4: Simplify right side
    190,238.17x = 20,069,519,378.52
  5. Step 5: Solve for x
    x = 20,069,519,378.52/190,238.17
  6. Step 6: Final answer
    x = 105,496.81

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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.