Home / 101,435.10-152,152.65-69,942.30

Finding the Fourth Proportional to 101,435.10, 152,152.65 and 69,942.30

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Solution

The fourth proportional to 101,435.10, 152,152.65 and 69,942.30 is: 104,913.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,435.10 : 152,152.65 = 69,942.30 : x
  2. Step 2: Convert to fraction form
    101,435.10/152,152.65 = 69,942.30/x
  3. Step 3: Cross multiply
    101,435.10x = 152,152.65 × 69,942.30
  4. Step 4: Simplify right side
    101,435.10x = 10,641,906,292.10
  5. Step 5: Solve for x
    x = 10,641,906,292.10/101,435.10
  6. Step 6: Final answer
    x = 104,913.45

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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.