Home / 146,868.64-202,678.14-86,438.86

Finding the Fourth Proportional to 146,868.64, 202,678.14 and 86,438.86

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Solution

The fourth proportional to 146,868.64, 202,678.14 and 86,438.86 is: 119,285.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,868.64 : 202,678.14 = 86,438.86 : x
  2. Step 2: Convert to fraction form
    146,868.64/202,678.14 = 86,438.86/x
  3. Step 3: Cross multiply
    146,868.64x = 202,678.14 × 86,438.86
  4. Step 4: Simplify right side
    146,868.64x = 17,519,267,368.52
  5. Step 5: Solve for x
    x = 17,519,267,368.52/146,868.64
  6. Step 6: Final answer
    x = 119,285.28

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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.