Home / 131,783.42-181,860.35-71,352.81

Finding the Fourth Proportional to 131,783.42, 181,860.35 and 71,352.81

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Solution

The fourth proportional to 131,783.42, 181,860.35 and 71,352.81 is: 98,466.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,783.42 : 181,860.35 = 71,352.81 : x
  2. Step 2: Convert to fraction form
    131,783.42/181,860.35 = 71,352.81/x
  3. Step 3: Cross multiply
    131,783.42x = 181,860.35 × 71,352.81
  4. Step 4: Simplify right side
    131,783.42x = 12,976,246,643.32
  5. Step 5: Solve for x
    x = 12,976,246,643.32/131,783.42
  6. Step 6: Final answer
    x = 98,466.46

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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.