Home / 131,865.71-181,973.93-71,437.52

Finding the Fourth Proportional to 131,865.71, 181,973.93 and 71,437.52

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Solution

The fourth proportional to 131,865.71, 181,973.93 and 71,437.52 is: 98,583.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,865.71 : 181,973.93 = 71,437.52 : x
  2. Step 2: Convert to fraction form
    131,865.71/181,973.93 = 71,437.52/x
  3. Step 3: Cross multiply
    131,865.71x = 181,973.93 × 71,437.52
  4. Step 4: Simplify right side
    131,865.71x = 12,999,766,361.60
  5. Step 5: Solve for x
    x = 12,999,766,361.60/131,865.71
  6. Step 6: Final answer
    x = 98,583.38

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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.