Home / 153,564.40-230,346.60-100,420.30

Finding the Fourth Proportional to 153,564.40, 230,346.60 and 100,420.30

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Solution

The fourth proportional to 153,564.40, 230,346.60 and 100,420.30 is: 150,630.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,564.40 : 230,346.60 = 100,420.30 : x
  2. Step 2: Convert to fraction form
    153,564.40/230,346.60 = 100,420.30/x
  3. Step 3: Cross multiply
    153,564.40x = 230,346.60 × 100,420.30
  4. Step 4: Simplify right side
    153,564.40x = 23,131,474,675.98
  5. Step 5: Solve for x
    x = 23,131,474,675.98/153,564.40
  6. Step 6: Final answer
    x = 150,630.45

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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.