Home / 190,240.17-285,379.14-70,328.55

Finding the Fourth Proportional to 190,240.17, 285,379.14 and 70,328.55

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Solution

The fourth proportional to 190,240.17, 285,379.14 and 70,328.55 is: 105,499.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,240.17 : 285,379.14 = 70,328.55 : x
  2. Step 2: Convert to fraction form
    190,240.17/285,379.14 = 70,328.55/x
  3. Step 3: Cross multiply
    190,240.17x = 285,379.14 × 70,328.55
  4. Step 4: Simplify right side
    190,240.17x = 20,070,301,116.45
  5. Step 5: Solve for x
    x = 20,070,301,116.45/190,240.17
  6. Step 6: Final answer
    x = 105,499.81

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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.