Home / 268,123.77-401,573.04-127,980.81

Finding the Fourth Proportional to 268,123.77, 401,573.04 and 127,980.81

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Solution

The fourth proportional to 268,123.77, 401,573.04 and 127,980.81 is: 191,678.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,123.77 : 401,573.04 = 127,980.81 : x
  2. Step 2: Convert to fraction form
    268,123.77/401,573.04 = 127,980.81/x
  3. Step 3: Cross multiply
    268,123.77x = 401,573.04 × 127,980.81
  4. Step 4: Simplify right side
    268,123.77x = 51,393,642,933.36
  5. Step 5: Solve for x
    x = 51,393,642,933.36/268,123.77
  6. Step 6: Final answer
    x = 191,678.80

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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.