Home / 268,656.14-402,969.63-81,653.06

Finding the Fourth Proportional to 268,656.14, 402,969.63 and 81,653.06

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Solution

The fourth proportional to 268,656.14, 402,969.63 and 81,653.06 is: 122,475.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,656.14 : 402,969.63 = 81,653.06 : x
  2. Step 2: Convert to fraction form
    268,656.14/402,969.63 = 81,653.06/x
  3. Step 3: Cross multiply
    268,656.14x = 402,969.63 × 81,653.06
  4. Step 4: Simplify right side
    268,656.14x = 32,903,704,690.19
  5. Step 5: Solve for x
    x = 32,903,704,690.19/268,656.14
  6. Step 6: Final answer
    x = 122,475.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.