Home / 100,281.40-138,351.72-59,996.32

Finding the Fourth Proportional to 100,281.40, 138,351.72 and 59,996.32

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Solution

The fourth proportional to 100,281.40, 138,351.72 and 59,996.32 is: 82,773.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,281.40 : 138,351.72 = 59,996.32 : x
  2. Step 2: Convert to fraction form
    100,281.40/138,351.72 = 59,996.32/x
  3. Step 3: Cross multiply
    100,281.40x = 138,351.72 × 59,996.32
  4. Step 4: Simplify right side
    100,281.40x = 8,300,594,065.67
  5. Step 5: Solve for x
    x = 8,300,594,065.67/100,281.40
  6. Step 6: Final answer
    x = 82,773.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.