Home / 101,434.44-139,977-56,114.94

Finding the Fourth Proportional to 101,434.44, 139,977 and 56,114.94

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Solution

The fourth proportional to 101,434.44, 139,977 and 56,114.94 is: 77,437.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,434.44 : 139,977 = 56,114.94 : x
  2. Step 2: Convert to fraction form
    101,434.44/139,977 = 56,114.94/x
  3. Step 3: Cross multiply
    101,434.44x = 139,977 × 56,114.94
  4. Step 4: Simplify right side
    101,434.44x = 7,854,800,956.38
  5. Step 5: Solve for x
    x = 7,854,800,956.38/101,434.44
  6. Step 6: Final answer
    x = 77,437.22

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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.