Home / 152,186.25-210,017.75-85,118.25

Finding the Fourth Proportional to 152,186.25, 210,017.75 and 85,118.25

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Solution

The fourth proportional to 152,186.25, 210,017.75 and 85,118.25 is: 117,463.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,186.25 : 210,017.75 = 85,118.25 : x
  2. Step 2: Convert to fraction form
    152,186.25/210,017.75 = 85,118.25/x
  3. Step 3: Cross multiply
    152,186.25x = 210,017.75 × 85,118.25
  4. Step 4: Simplify right side
    152,186.25x = 17,876,342,923.35
  5. Step 5: Solve for x
    x = 17,876,342,923.35/152,186.25
  6. Step 6: Final answer
    x = 117,463.59

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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.