Home / 253,111.80-379,667.70-66,123.30

Finding the Fourth Proportional to 253,111.80, 379,667.70 and 66,123.30

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Solution

The fourth proportional to 253,111.80, 379,667.70 and 66,123.30 is: 99,184.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,111.80 : 379,667.70 = 66,123.30 : x
  2. Step 2: Convert to fraction form
    253,111.80/379,667.70 = 66,123.30/x
  3. Step 3: Cross multiply
    253,111.80x = 379,667.70 × 66,123.30
  4. Step 4: Simplify right side
    253,111.80x = 25,104,881,227.41
  5. Step 5: Solve for x
    x = 25,104,881,227.41/253,111.80
  6. Step 6: Final answer
    x = 99,184.95

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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.