Home / 203,666.03-305,426.15-70,510.54

Finding the Fourth Proportional to 203,666.03, 305,426.15 and 70,510.54

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Solution

The fourth proportional to 203,666.03, 305,426.15 and 70,510.54 is: 105,740.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,666.03 : 305,426.15 = 70,510.54 : x
  2. Step 2: Convert to fraction form
    203,666.03/305,426.15 = 70,510.54/x
  3. Step 3: Cross multiply
    203,666.03x = 305,426.15 × 70,510.54
  4. Step 4: Simplify right side
    203,666.03x = 21,535,760,886.94
  5. Step 5: Solve for x
    x = 21,535,760,886.94/203,666.03
  6. Step 6: Final answer
    x = 105,740.56

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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.