Home / 281,037.06-421,151.40-121,069.08

Finding the Fourth Proportional to 281,037.06, 421,151.40 and 121,069.08

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Solution

The fourth proportional to 281,037.06, 421,151.40 and 121,069.08 is: 181,429.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,037.06 : 421,151.40 = 121,069.08 : x
  2. Step 2: Convert to fraction form
    281,037.06/421,151.40 = 121,069.08/x
  3. Step 3: Cross multiply
    281,037.06x = 421,151.40 × 121,069.08
  4. Step 4: Simplify right side
    281,037.06x = 50,988,412,538.71
  5. Step 5: Solve for x
    x = 50,988,412,538.71/281,037.06
  6. Step 6: Final answer
    x = 181,429.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.