Home / 145,717.66-201,100.76-81,192.25

Finding the Fourth Proportional to 145,717.66, 201,100.76 and 81,192.25

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Solution

The fourth proportional to 145,717.66, 201,100.76 and 81,192.25 is: 112,051.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,717.66 : 201,100.76 = 81,192.25 : x
  2. Step 2: Convert to fraction form
    145,717.66/201,100.76 = 81,192.25/x
  3. Step 3: Cross multiply
    145,717.66x = 201,100.76 × 81,192.25
  4. Step 4: Simplify right side
    145,717.66x = 16,327,823,181.11
  5. Step 5: Solve for x
    x = 16,327,823,181.11/145,717.66
  6. Step 6: Final answer
    x = 112,051.09

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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.