Home / 102,355.34-153,533-39,982.10

Finding the Fourth Proportional to 102,355.34, 153,533 and 39,982.10

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Solution

The fourth proportional to 102,355.34, 153,533 and 39,982.10 is: 59,973.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,355.34 : 153,533 = 39,982.10 : x
  2. Step 2: Convert to fraction form
    102,355.34/153,533 = 39,982.10/x
  3. Step 3: Cross multiply
    102,355.34x = 153,533 × 39,982.10
  4. Step 4: Simplify right side
    102,355.34x = 6,138,571,759.30
  5. Step 5: Solve for x
    x = 6,138,571,759.30/102,355.34
  6. Step 6: Final answer
    x = 59,973.15

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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.