Home / 101,820.36-140,507.24-56,497.85

Finding the Fourth Proportional to 101,820.36, 140,507.24 and 56,497.85

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Solution

The fourth proportional to 101,820.36, 140,507.24 and 56,497.85 is: 77,964.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,820.36 : 140,507.24 = 56,497.85 : x
  2. Step 2: Convert to fraction form
    101,820.36/140,507.24 = 56,497.85/x
  3. Step 3: Cross multiply
    101,820.36x = 140,507.24 × 56,497.85
  4. Step 4: Simplify right side
    101,820.36x = 7,938,355,984.41
  5. Step 5: Solve for x
    x = 7,938,355,984.41/101,820.36
  6. Step 6: Final answer
    x = 77,964.33

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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.