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Finding the Fourth Proportional to 103,465.90, 154,935.33 and 68,298.22

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Solution

The fourth proportional to 103,465.90, 154,935.33 and 68,298.22 is: 102,273.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,465.90 : 154,935.33 = 68,298.22 : x
  2. Step 2: Convert to fraction form
    103,465.90/154,935.33 = 68,298.22/x
  3. Step 3: Cross multiply
    103,465.90x = 154,935.33 × 68,298.22
  4. Step 4: Simplify right side
    103,465.90x = 10,581,807,254.11
  5. Step 5: Solve for x
    x = 10,581,807,254.11/103,465.90
  6. Step 6: Final answer
    x = 102,273.38

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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.