Home / 165,430.40-248,145.60-106,381.40

Finding the Fourth Proportional to 165,430.40, 248,145.60 and 106,381.40

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Solution

The fourth proportional to 165,430.40, 248,145.60 and 106,381.40 is: 159,572.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,430.40 : 248,145.60 = 106,381.40 : x
  2. Step 2: Convert to fraction form
    165,430.40/248,145.60 = 106,381.40/x
  3. Step 3: Cross multiply
    165,430.40x = 248,145.60 × 106,381.40
  4. Step 4: Simplify right side
    165,430.40x = 26,398,076,331.84
  5. Step 5: Solve for x
    x = 26,398,076,331.84/165,430.40
  6. Step 6: Final answer
    x = 159,572.10

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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.