Home / 155,331.66-214,429.86-117,106.68

Finding the Fourth Proportional to 155,331.66, 214,429.86 and 117,106.68

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Solution

The fourth proportional to 155,331.66, 214,429.86 and 117,106.68 is: 161,661.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,331.66 : 214,429.86 = 117,106.68 : x
  2. Step 2: Convert to fraction form
    155,331.66/214,429.86 = 117,106.68/x
  3. Step 3: Cross multiply
    155,331.66x = 214,429.86 × 117,106.68
  4. Step 4: Simplify right side
    155,331.66x = 25,111,168,997.46
  5. Step 5: Solve for x
    x = 25,111,168,997.46/155,331.66
  6. Step 6: Final answer
    x = 161,661.63

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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.