Home / 103,408.88-155,114.04-56,636.24

Finding the Fourth Proportional to 103,408.88, 155,114.04 and 56,636.24

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Solution

The fourth proportional to 103,408.88, 155,114.04 and 56,636.24 is: 84,954.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,408.88 : 155,114.04 = 56,636.24 : x
  2. Step 2: Convert to fraction form
    103,408.88/155,114.04 = 56,636.24/x
  3. Step 3: Cross multiply
    103,408.88x = 155,114.04 × 56,636.24
  4. Step 4: Simplify right side
    103,408.88x = 8,785,075,996.81
  5. Step 5: Solve for x
    x = 8,785,075,996.81/103,408.88
  6. Step 6: Final answer
    x = 84,954.75

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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.