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Finding the Fourth Proportional to 113,750.30, 170,765.85 and 71,630.30

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Solution

The fourth proportional to 113,750.30, 170,765.85 and 71,630.30 is: 107,533.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,750.30 : 170,765.85 = 71,630.30 : x
  2. Step 2: Convert to fraction form
    113,750.30/170,765.85 = 71,630.30/x
  3. Step 3: Cross multiply
    113,750.30x = 170,765.85 × 71,630.30
  4. Step 4: Simplify right side
    113,750.30x = 12,232,009,065.26
  5. Step 5: Solve for x
    x = 12,232,009,065.26/113,750.30
  6. Step 6: Final answer
    x = 107,533.86

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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.