Home / 140,286.40-210,429.60-93,047.20

Finding the Fourth Proportional to 140,286.40, 210,429.60 and 93,047.20

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Solution

The fourth proportional to 140,286.40, 210,429.60 and 93,047.20 is: 139,570.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,286.40 : 210,429.60 = 93,047.20 : x
  2. Step 2: Convert to fraction form
    140,286.40/210,429.60 = 93,047.20/x
  3. Step 3: Cross multiply
    140,286.40x = 210,429.60 × 93,047.20
  4. Step 4: Simplify right side
    140,286.40x = 19,579,885,077.12
  5. Step 5: Solve for x
    x = 19,579,885,077.12/140,286.40
  6. Step 6: Final answer
    x = 139,570.80

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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.