Home / 190,685.04-285,938.64-70,737.20

Finding the Fourth Proportional to 190,685.04, 285,938.64 and 70,737.20

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Solution

The fourth proportional to 190,685.04, 285,938.64 and 70,737.20 is: 106,072.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,685.04 : 285,938.64 = 70,737.20 : x
  2. Step 2: Convert to fraction form
    190,685.04/285,938.64 = 70,737.20/x
  3. Step 3: Cross multiply
    190,685.04x = 285,938.64 × 70,737.20
  4. Step 4: Simplify right side
    190,685.04x = 20,226,498,765.41
  5. Step 5: Solve for x
    x = 20,226,498,765.41/190,685.04
  6. Step 6: Final answer
    x = 106,072.81

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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.