Home / 131,253.49-181,033.12-98,989.45

Finding the Fourth Proportional to 131,253.49, 181,033.12 and 98,989.45

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Solution

The fourth proportional to 131,253.49, 181,033.12 and 98,989.45 is: 136,532.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,253.49 : 181,033.12 = 98,989.45 : x
  2. Step 2: Convert to fraction form
    131,253.49/181,033.12 = 98,989.45/x
  3. Step 3: Cross multiply
    131,253.49x = 181,033.12 × 98,989.45
  4. Step 4: Simplify right side
    131,253.49x = 17,920,368,485.64
  5. Step 5: Solve for x
    x = 17,920,368,485.64/131,253.49
  6. Step 6: Final answer
    x = 136,532.52

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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.