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Finding the Fourth Proportional to 101,030.14, 139,348.30 and 68,707.30

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Solution

The fourth proportional to 101,030.14, 139,348.30 and 68,707.30 is: 94,766.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,030.14 : 139,348.30 = 68,707.30 : x
  2. Step 2: Convert to fraction form
    101,030.14/139,348.30 = 68,707.30/x
  3. Step 3: Cross multiply
    101,030.14x = 139,348.30 × 68,707.30
  4. Step 4: Simplify right side
    101,030.14x = 9,574,245,518.51
  5. Step 5: Solve for x
    x = 9,574,245,518.51/101,030.14
  6. Step 6: Final answer
    x = 94,766.23

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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.