Home / 154,437.60-213,148.08-111,980.64

Finding the Fourth Proportional to 154,437.60, 213,148.08 and 111,980.64

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Solution

The fourth proportional to 154,437.60, 213,148.08 and 111,980.64 is: 154,550.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,437.60 : 213,148.08 = 111,980.64 : x
  2. Step 2: Convert to fraction form
    154,437.60/213,148.08 = 111,980.64/x
  3. Step 3: Cross multiply
    154,437.60x = 213,148.08 × 111,980.64
  4. Step 4: Simplify right side
    154,437.60x = 23,868,458,413.17
  5. Step 5: Solve for x
    x = 23,868,458,413.17/154,437.60
  6. Step 6: Final answer
    x = 154,550.82

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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.