Home / 147,639.42-203,749.03-83,130.84

Finding the Fourth Proportional to 147,639.42, 203,749.03 and 83,130.84

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Solution

The fourth proportional to 147,639.42, 203,749.03 and 83,130.84 is: 114,724.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,639.42 : 203,749.03 = 83,130.84 : x
  2. Step 2: Convert to fraction form
    147,639.42/203,749.03 = 83,130.84/x
  3. Step 3: Cross multiply
    147,639.42x = 203,749.03 × 83,130.84
  4. Step 4: Simplify right side
    147,639.42x = 16,937,828,013.09
  5. Step 5: Solve for x
    x = 16,937,828,013.09/147,639.42
  6. Step 6: Final answer
    x = 114,724.29

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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.