Home / 131,431.02-181,374.62-74,842.39

Finding the Fourth Proportional to 131,431.02, 181,374.62 and 74,842.39

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Solution

The fourth proportional to 131,431.02, 181,374.62 and 74,842.39 is: 103,282.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,431.02 : 181,374.62 = 74,842.39 : x
  2. Step 2: Convert to fraction form
    131,431.02/181,374.62 = 74,842.39/x
  3. Step 3: Cross multiply
    131,431.02x = 181,374.62 × 74,842.39
  4. Step 4: Simplify right side
    131,431.02x = 13,574,510,046.14
  5. Step 5: Solve for x
    x = 13,574,510,046.14/131,431.02
  6. Step 6: Final answer
    x = 103,282.39

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1.5x scale

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.