Home / 210,555.93-290,570.99-115,066.65

Finding the Fourth Proportional to 210,555.93, 290,570.99 and 115,066.65

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Solution

The fourth proportional to 210,555.93, 290,570.99 and 115,066.65 is: 158,794.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,555.93 : 290,570.99 = 115,066.65 : x
  2. Step 2: Convert to fraction form
    210,555.93/290,570.99 = 115,066.65/x
  3. Step 3: Cross multiply
    210,555.93x = 290,570.99 × 115,066.65
  4. Step 4: Simplify right side
    210,555.93x = 33,435,029,831.15
  5. Step 5: Solve for x
    x = 33,435,029,831.15/210,555.93
  6. Step 6: Final answer
    x = 158,794.05

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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.