Home / 102,277.26-141,139.99-99,259.20

Finding the Fourth Proportional to 102,277.26, 141,139.99 and 99,259.20

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Solution

The fourth proportional to 102,277.26, 141,139.99 and 99,259.20 is: 136,975.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,277.26 : 141,139.99 = 99,259.20 : x
  2. Step 2: Convert to fraction form
    102,277.26/141,139.99 = 99,259.20/x
  3. Step 3: Cross multiply
    102,277.26x = 141,139.99 × 99,259.20
  4. Step 4: Simplify right side
    102,277.26x = 14,009,442,495.41
  5. Step 5: Solve for x
    x = 14,009,442,495.41/102,277.26
  6. Step 6: Final answer
    x = 136,975.14

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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.