Home / 99,501.10-148,923.60-69,976.60

Finding the Fourth Proportional to 99,501.10, 148,923.60 and 69,976.60

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Solution

The fourth proportional to 99,501.10, 148,923.60 and 69,976.60 is: 104,734.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,501.10 : 148,923.60 = 69,976.60 : x
  2. Step 2: Convert to fraction form
    99,501.10/148,923.60 = 69,976.60/x
  3. Step 3: Cross multiply
    99,501.10x = 148,923.60 × 69,976.60
  4. Step 4: Simplify right side
    99,501.10x = 10,421,167,187.76
  5. Step 5: Solve for x
    x = 10,421,167,187.76/99,501.10
  6. Step 6: Final answer
    x = 104,734.19

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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.