Home / 102,355.85-153,533.75-39,982.61

Finding the Fourth Proportional to 102,355.85, 153,533.75 and 39,982.61

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Solution

The fourth proportional to 102,355.85, 153,533.75 and 39,982.61 is: 59,973.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,355.85 : 153,533.75 = 39,982.61 : x
  2. Step 2: Convert to fraction form
    102,355.85/153,533.75 = 39,982.61/x
  3. Step 3: Cross multiply
    102,355.85x = 153,533.75 × 39,982.61
  4. Step 4: Simplify right side
    102,355.85x = 6,138,679,080.51
  5. Step 5: Solve for x
    x = 6,138,679,080.51/102,355.85
  6. Step 6: Final answer
    x = 59,973.90

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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.