Home / 134,786.61-186,002.55-74,357.31

Finding the Fourth Proportional to 134,786.61, 186,002.55 and 74,357.31

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Solution

The fourth proportional to 134,786.61, 186,002.55 and 74,357.31 is: 102,611.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,786.61 : 186,002.55 = 74,357.31 : x
  2. Step 2: Convert to fraction form
    134,786.61/186,002.55 = 74,357.31/x
  3. Step 3: Cross multiply
    134,786.61x = 186,002.55 × 74,357.31
  4. Step 4: Simplify right side
    134,786.61x = 13,830,649,271.14
  5. Step 5: Solve for x
    x = 13,830,649,271.14/134,786.61
  6. Step 6: Final answer
    x = 102,611.45

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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.