Home / 148,018.16-221,993.74-67,979.18

Finding the Fourth Proportional to 148,018.16, 221,993.74 and 67,979.18

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Solution

The fourth proportional to 148,018.16, 221,993.74 and 67,979.18 is: 101,953.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,018.16 : 221,993.74 = 67,979.18 : x
  2. Step 2: Convert to fraction form
    148,018.16/221,993.74 = 67,979.18/x
  3. Step 3: Cross multiply
    148,018.16x = 221,993.74 × 67,979.18
  4. Step 4: Simplify right side
    148,018.16x = 15,090,950,960.47
  5. Step 5: Solve for x
    x = 15,090,950,960.47/148,018.16
  6. Step 6: Final answer
    x = 101,953.38

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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.