Home / 152,905.40-211,012.26-84,928.68

Finding the Fourth Proportional to 152,905.40, 211,012.26 and 84,928.68

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Solution

The fourth proportional to 152,905.40, 211,012.26 and 84,928.68 is: 117,203.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,905.40 : 211,012.26 = 84,928.68 : x
  2. Step 2: Convert to fraction form
    152,905.40/211,012.26 = 84,928.68/x
  3. Step 3: Cross multiply
    152,905.40x = 211,012.26 × 84,928.68
  4. Step 4: Simplify right side
    152,905.40x = 17,920,992,705.62
  5. Step 5: Solve for x
    x = 17,920,992,705.62/152,905.40
  6. Step 6: Final answer
    x = 117,203.14

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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.