Home / 210,074.26-315,009.06-69,785.50

Finding the Fourth Proportional to 210,074.26, 315,009.06 and 69,785.50

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Solution

The fourth proportional to 210,074.26, 315,009.06 and 69,785.50 is: 104,644.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,074.26 : 315,009.06 = 69,785.50 : x
  2. Step 2: Convert to fraction form
    210,074.26/315,009.06 = 69,785.50/x
  3. Step 3: Cross multiply
    210,074.26x = 315,009.06 × 69,785.50
  4. Step 4: Simplify right side
    210,074.26x = 21,983,064,756.63
  5. Step 5: Solve for x
    x = 21,983,064,756.63/210,074.26
  6. Step 6: Final answer
    x = 104,644.26

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1.5x scale

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.