Home / 220,030.51-303,643.09-124,555.66

Finding the Fourth Proportional to 220,030.51, 303,643.09 and 124,555.66

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Solution

The fourth proportional to 220,030.51, 303,643.09 and 124,555.66 is: 171,887.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,030.51 : 303,643.09 = 124,555.66 : x
  2. Step 2: Convert to fraction form
    220,030.51/303,643.09 = 124,555.66/x
  3. Step 3: Cross multiply
    220,030.51x = 303,643.09 × 124,555.66
  4. Step 4: Simplify right side
    220,030.51x = 37,820,465,479.39
  5. Step 5: Solve for x
    x = 37,820,465,479.39/220,030.51
  6. Step 6: Final answer
    x = 171,887.37

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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.