Home / 105,632.66-158,342.36-66,217.45

Finding the Fourth Proportional to 105,632.66, 158,342.36 and 66,217.45

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Solution

The fourth proportional to 105,632.66, 158,342.36 and 66,217.45 is: 99,259.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,632.66 : 158,342.36 = 66,217.45 : x
  2. Step 2: Convert to fraction form
    105,632.66/158,342.36 = 66,217.45/x
  3. Step 3: Cross multiply
    105,632.66x = 158,342.36 × 66,217.45
  4. Step 4: Simplify right side
    105,632.66x = 10,485,027,075.87
  5. Step 5: Solve for x
    x = 10,485,027,075.87/105,632.66
  6. Step 6: Final answer
    x = 99,259.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.