Home / 115,968.80-160,036.87-64,981.95

Finding the Fourth Proportional to 115,968.80, 160,036.87 and 64,981.95

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Solution

The fourth proportional to 115,968.80, 160,036.87 and 64,981.95 is: 89,675.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,968.80 : 160,036.87 = 64,981.95 : x
  2. Step 2: Convert to fraction form
    115,968.80/160,036.87 = 64,981.95/x
  3. Step 3: Cross multiply
    115,968.80x = 160,036.87 × 64,981.95
  4. Step 4: Simplify right side
    115,968.80x = 10,399,507,884.50
  5. Step 5: Solve for x
    x = 10,399,507,884.50/115,968.80
  6. Step 6: Final answer
    x = 89,675.05

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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.