Home / 160,860.21-221,987.36-89,240.24

Finding the Fourth Proportional to 160,860.21, 221,987.36 and 89,240.24

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Solution

The fourth proportional to 160,860.21, 221,987.36 and 89,240.24 is: 123,151.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,860.21 : 221,987.36 = 89,240.24 : x
  2. Step 2: Convert to fraction form
    160,860.21/221,987.36 = 89,240.24/x
  3. Step 3: Cross multiply
    160,860.21x = 221,987.36 × 89,240.24
  4. Step 4: Simplify right side
    160,860.21x = 19,810,203,727.23
  5. Step 5: Solve for x
    x = 19,810,203,727.23/160,860.21
  6. Step 6: Final answer
    x = 123,151.67

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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.