Home / 136,413.40-204,620.10-42,947.80

Finding the Fourth Proportional to 136,413.40, 204,620.10 and 42,947.80

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Solution

The fourth proportional to 136,413.40, 204,620.10 and 42,947.80 is: 64,421.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,413.40 : 204,620.10 = 42,947.80 : x
  2. Step 2: Convert to fraction form
    136,413.40/204,620.10 = 42,947.80/x
  3. Step 3: Cross multiply
    136,413.40x = 204,620.10 × 42,947.80
  4. Step 4: Simplify right side
    136,413.40x = 8,787,983,130.78
  5. Step 5: Solve for x
    x = 8,787,983,130.78/136,413.40
  6. Step 6: Final answer
    x = 64,421.70

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1.5x scale

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.