Home / 98,807.56-148,210.62-83,981.32

Finding the Fourth Proportional to 98,807.56, 148,210.62 and 83,981.32

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Solution

The fourth proportional to 98,807.56, 148,210.62 and 83,981.32 is: 125,971.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,807.56 : 148,210.62 = 83,981.32 : x
  2. Step 2: Convert to fraction form
    98,807.56/148,210.62 = 83,981.32/x
  3. Step 3: Cross multiply
    98,807.56x = 148,210.62 × 83,981.32
  4. Step 4: Simplify right side
    98,807.56x = 12,446,923,505.62
  5. Step 5: Solve for x
    x = 12,446,923,505.62/98,807.56
  6. Step 6: Final answer
    x = 125,971.37

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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.