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Finding the Fourth Proportional to 113,862.40, 157,056.80 and 69,150.40

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Solution

The fourth proportional to 113,862.40, 157,056.80 and 69,150.40 is: 95,383.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,862.40 : 157,056.80 = 69,150.40 : x
  2. Step 2: Convert to fraction form
    113,862.40/157,056.80 = 69,150.40/x
  3. Step 3: Cross multiply
    113,862.40x = 157,056.80 × 69,150.40
  4. Step 4: Simplify right side
    113,862.40x = 10,860,540,542.72
  5. Step 5: Solve for x
    x = 10,860,540,542.72/113,862.40
  6. Step 6: Final answer
    x = 95,383.03

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1.5x scale

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.