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Finding the Fourth Proportional to 116,540.40, 174,810.60 and 103,407.60

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Solution

The fourth proportional to 116,540.40, 174,810.60 and 103,407.60 is: 155,111.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,540.40 : 174,810.60 = 103,407.60 : x
  2. Step 2: Convert to fraction form
    116,540.40/174,810.60 = 103,407.60/x
  3. Step 3: Cross multiply
    116,540.40x = 174,810.60 × 103,407.60
  4. Step 4: Simplify right side
    116,540.40x = 18,076,744,600.56
  5. Step 5: Solve for x
    x = 18,076,744,600.56/116,540.40
  6. Step 6: Final answer
    x = 155,111.40

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1.5x scale

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.