Home / 220,215.71-303,897.42-124,740.81

Finding the Fourth Proportional to 220,215.71, 303,897.42 and 124,740.81

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Solution

The fourth proportional to 220,215.71, 303,897.42 and 124,740.81 is: 172,142.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,215.71 : 303,897.42 = 124,740.81 : x
  2. Step 2: Convert to fraction form
    220,215.71/303,897.42 = 124,740.81/x
  3. Step 3: Cross multiply
    220,215.71x = 303,897.42 × 124,740.81
  4. Step 4: Simplify right side
    220,215.71x = 37,908,410,327.71
  5. Step 5: Solve for x
    x = 37,908,410,327.71/220,215.71
  6. Step 6: Final answer
    x = 172,142.17

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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.