Home / 149,851-206,795.10-86,192.56

Finding the Fourth Proportional to 149,851, 206,795.10 and 86,192.56

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Solution

The fourth proportional to 149,851, 206,795.10 and 86,192.56 is: 118,946.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,851 : 206,795.10 = 86,192.56 : x
  2. Step 2: Convert to fraction form
    149,851/206,795.10 = 86,192.56/x
  3. Step 3: Cross multiply
    149,851x = 206,795.10 × 86,192.56
  4. Step 4: Simplify right side
    149,851x = 17,824,199,064.46
  5. Step 5: Solve for x
    x = 17,824,199,064.46/149,851
  6. Step 6: Final answer
    x = 118,946.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.