Home / 103,091.01-142,271.30-57,783.56

Finding the Fourth Proportional to 103,091.01, 142,271.30 and 57,783.56

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Solution

The fourth proportional to 103,091.01, 142,271.30 and 57,783.56 is: 79,744.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,091.01 : 142,271.30 = 57,783.56 : x
  2. Step 2: Convert to fraction form
    103,091.01/142,271.30 = 57,783.56/x
  3. Step 3: Cross multiply
    103,091.01x = 142,271.30 × 57,783.56
  4. Step 4: Simplify right side
    103,091.01x = 8,220,941,632.93
  5. Step 5: Solve for x
    x = 8,220,941,632.93/103,091.01
  6. Step 6: Final answer
    x = 79,744.51

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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.