Home / 113,940.17-157,205.44-65,539.56

Finding the Fourth Proportional to 113,940.17, 157,205.44 and 65,539.56

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Solution

The fourth proportional to 113,940.17, 157,205.44 and 65,539.56 is: 90,426.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,940.17 : 157,205.44 = 65,539.56 : x
  2. Step 2: Convert to fraction form
    113,940.17/157,205.44 = 65,539.56/x
  3. Step 3: Cross multiply
    113,940.17x = 157,205.44 × 65,539.56
  4. Step 4: Simplify right side
    113,940.17x = 10,303,176,038.65
  5. Step 5: Solve for x
    x = 10,303,176,038.65/113,940.17
  6. Step 6: Final answer
    x = 90,426.20

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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.