Home / 115,453.10-158,713.67-99,260.75

Finding the Fourth Proportional to 115,453.10, 158,713.67 and 99,260.75

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Solution

The fourth proportional to 115,453.10, 158,713.67 and 99,260.75 is: 136,454.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,453.10 : 158,713.67 = 99,260.75 : x
  2. Step 2: Convert to fraction form
    115,453.10/158,713.67 = 99,260.75/x
  3. Step 3: Cross multiply
    115,453.10x = 158,713.67 × 99,260.75
  4. Step 4: Simplify right side
    115,453.10x = 15,754,038,089.65
  5. Step 5: Solve for x
    x = 15,754,038,089.65/115,453.10
  6. Step 6: Final answer
    x = 136,454.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.