Home / 145,458.80-218,091-117,413.36

Finding the Fourth Proportional to 145,458.80, 218,091 and 117,413.36

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Solution

The fourth proportional to 145,458.80, 218,091 and 117,413.36 is: 176,041.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,458.80 : 218,091 = 117,413.36 : x
  2. Step 2: Convert to fraction form
    145,458.80/218,091 = 117,413.36/x
  3. Step 3: Cross multiply
    145,458.80x = 218,091 × 117,413.36
  4. Step 4: Simplify right side
    145,458.80x = 25,606,797,095.76
  5. Step 5: Solve for x
    x = 25,606,797,095.76/145,458.80
  6. Step 6: Final answer
    x = 176,041.58

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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.