Home / 152,221.20-210,064.96-85,153.20

Finding the Fourth Proportional to 152,221.20, 210,064.96 and 85,153.20

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Solution

The fourth proportional to 152,221.20, 210,064.96 and 85,153.20 is: 117,511.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,221.20 : 210,064.96 = 85,153.20 : x
  2. Step 2: Convert to fraction form
    152,221.20/210,064.96 = 85,153.20/x
  3. Step 3: Cross multiply
    152,221.20x = 210,064.96 × 85,153.20
  4. Step 4: Simplify right side
    152,221.20x = 17,887,703,551.87
  5. Step 5: Solve for x
    x = 17,887,703,551.87/152,221.20
  6. Step 6: Final answer
    x = 117,511.25

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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.