Home / 146,390.64-219,430.40-57,631.92

Finding the Fourth Proportional to 146,390.64, 219,430.40 and 57,631.92

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Solution

The fourth proportional to 146,390.64, 219,430.40 and 57,631.92 is: 86,386.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,390.64 : 219,430.40 = 57,631.92 : x
  2. Step 2: Convert to fraction form
    146,390.64/219,430.40 = 57,631.92/x
  3. Step 3: Cross multiply
    146,390.64x = 219,430.40 × 57,631.92
  4. Step 4: Simplify right side
    146,390.64x = 12,646,195,258.37
  5. Step 5: Solve for x
    x = 12,646,195,258.37/146,390.64
  6. Step 6: Final answer
    x = 86,386.64

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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.