Home / 105,884.40-146,128.14-70,012.20

Finding the Fourth Proportional to 105,884.40, 146,128.14 and 70,012.20

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Solution

The fourth proportional to 105,884.40, 146,128.14 and 70,012.20 is: 96,621.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,884.40 : 146,128.14 = 70,012.20 : x
  2. Step 2: Convert to fraction form
    105,884.40/146,128.14 = 70,012.20/x
  3. Step 3: Cross multiply
    105,884.40x = 146,128.14 × 70,012.20
  4. Step 4: Simplify right side
    105,884.40x = 10,230,752,563.31
  5. Step 5: Solve for x
    x = 10,230,752,563.31/105,884.40
  6. Step 6: Final answer
    x = 96,621.91

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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.