Home / 139,968,173.70-209,952,260.55-71,093,420.10

Finding the Fourth Proportional to 139,968,173.70, 209,952,260.55 and 71,093,420.10

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Solution

The fourth proportional to 139,968,173.70, 209,952,260.55 and 71,093,420.10 is: 106,640,130.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,173.70 : 209,952,260.55 = 71,093,420.10 : x
  2. Step 2: Convert to fraction form
    139,968,173.70/209,952,260.55 = 71,093,420.10/x
  3. Step 3: Cross multiply
    139,968,173.70x = 209,952,260.55 × 71,093,420.10
  4. Step 4: Simplify right side
    139,968,173.70x = 14,926,224,260,225,806
  5. Step 5: Solve for x
    x = 14,926,224,260,225,806/139,968,173.70
  6. Step 6: Final answer
    x = 106,640,130.15

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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.