Home / 135,608.93-187,210.73-105,326.45

Finding the Fourth Proportional to 135,608.93, 187,210.73 and 105,326.45

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Solution

The fourth proportional to 135,608.93, 187,210.73 and 105,326.45 is: 145,405.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,608.93 : 187,210.73 = 105,326.45 : x
  2. Step 2: Convert to fraction form
    135,608.93/187,210.73 = 105,326.45/x
  3. Step 3: Cross multiply
    135,608.93x = 187,210.73 × 105,326.45
  4. Step 4: Simplify right side
    135,608.93x = 19,718,240,920.07
  5. Step 5: Solve for x
    x = 19,718,240,920.07/135,608.93
  6. Step 6: Final answer
    x = 145,405.19

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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.