Home / 101,428.16-140,085.74-69,106.73

Finding the Fourth Proportional to 101,428.16, 140,085.74 and 69,106.73

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Solution

The fourth proportional to 101,428.16, 140,085.74 and 69,106.73 is: 95,445.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,428.16 : 140,085.74 = 69,106.73 : x
  2. Step 2: Convert to fraction form
    101,428.16/140,085.74 = 69,106.73/x
  3. Step 3: Cross multiply
    101,428.16x = 140,085.74 × 69,106.73
  4. Step 4: Simplify right side
    101,428.16x = 9,680,866,883.37
  5. Step 5: Solve for x
    x = 9,680,866,883.37/101,428.16
  6. Step 6: Final answer
    x = 95,445.56

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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.