Home / 147,128.19-203,030.89-83,464.62

Finding the Fourth Proportional to 147,128.19, 203,030.89 and 83,464.62

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Solution

The fourth proportional to 147,128.19, 203,030.89 and 83,464.62 is: 115,177.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,128.19 : 203,030.89 = 83,464.62 : x
  2. Step 2: Convert to fraction form
    147,128.19/203,030.89 = 83,464.62/x
  3. Step 3: Cross multiply
    147,128.19x = 203,030.89 × 83,464.62
  4. Step 4: Simplify right side
    147,128.19x = 16,945,896,082.11
  5. Step 5: Solve for x
    x = 16,945,896,082.11/147,128.19
  6. Step 6: Final answer
    x = 115,177.76

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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.