Home / 160,238.66-221,158.94-102,949.60

Finding the Fourth Proportional to 160,238.66, 221,158.94 and 102,949.60

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Solution

The fourth proportional to 160,238.66, 221,158.94 and 102,949.60 is: 142,089.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,238.66 : 221,158.94 = 102,949.60 : x
  2. Step 2: Convert to fraction form
    160,238.66/221,158.94 = 102,949.60/x
  3. Step 3: Cross multiply
    160,238.66x = 221,158.94 × 102,949.60
  4. Step 4: Simplify right side
    160,238.66x = 22,768,223,719.51
  5. Step 5: Solve for x
    x = 22,768,223,719.51/160,238.66
  6. Step 6: Final answer
    x = 142,089.45

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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.