Home / 190,445.10-285,670.47-72,084.66

Finding the Fourth Proportional to 190,445.10, 285,670.47 and 72,084.66

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Solution

The fourth proportional to 190,445.10, 285,670.47 and 72,084.66 is: 108,128.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,445.10 : 285,670.47 = 72,084.66 : x
  2. Step 2: Convert to fraction form
    190,445.10/285,670.47 = 72,084.66/x
  3. Step 3: Cross multiply
    190,445.10x = 285,670.47 × 72,084.66
  4. Step 4: Simplify right side
    190,445.10x = 20,592,458,701.99
  5. Step 5: Solve for x
    x = 20,592,458,701.99/190,445.10
  6. Step 6: Final answer
    x = 108,128.06

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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.