Home / 113,777.84-157,013.16-66,059.12

Finding the Fourth Proportional to 113,777.84, 157,013.16 and 66,059.12

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Solution

The fourth proportional to 113,777.84, 157,013.16 and 66,059.12 is: 91,161.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,777.84 : 157,013.16 = 66,059.12 : x
  2. Step 2: Convert to fraction form
    113,777.84/157,013.16 = 66,059.12/x
  3. Step 3: Cross multiply
    113,777.84x = 157,013.16 × 66,059.12
  4. Step 4: Simplify right side
    113,777.84x = 10,372,151,178.02
  5. Step 5: Solve for x
    x = 10,372,151,178.02/113,777.84
  6. Step 6: Final answer
    x = 91,161.44

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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.