Home / 117,327.85-161,900.29-72,007.75

Finding the Fourth Proportional to 117,327.85, 161,900.29 and 72,007.75

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Solution

The fourth proportional to 117,327.85, 161,900.29 and 72,007.75 is: 99,363.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,327.85 : 161,900.29 = 72,007.75 : x
  2. Step 2: Convert to fraction form
    117,327.85/161,900.29 = 72,007.75/x
  3. Step 3: Cross multiply
    117,327.85x = 161,900.29 × 72,007.75
  4. Step 4: Simplify right side
    117,327.85x = 11,658,075,607.25
  5. Step 5: Solve for x
    x = 11,658,075,607.25/117,327.85
  6. Step 6: Final answer
    x = 99,363.24

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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.