Home / 101,413.44-139,947.21-56,090.70

Finding the Fourth Proportional to 101,413.44, 139,947.21 and 56,090.70

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Solution

The fourth proportional to 101,413.44, 139,947.21 and 56,090.70 is: 77,403.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,413.44 : 139,947.21 = 56,090.70 : x
  2. Step 2: Convert to fraction form
    101,413.44/139,947.21 = 56,090.70/x
  3. Step 3: Cross multiply
    101,413.44x = 139,947.21 × 56,090.70
  4. Step 4: Simplify right side
    101,413.44x = 7,849,736,971.95
  5. Step 5: Solve for x
    x = 7,849,736,971.95/101,413.44
  6. Step 6: Final answer
    x = 77,403.32

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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.