Home / 210,985.98-291,163.86-115,501.56

Finding the Fourth Proportional to 210,985.98, 291,163.86 and 115,501.56

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Solution

The fourth proportional to 210,985.98, 291,163.86 and 115,501.56 is: 159,393.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,985.98 : 291,163.86 = 115,501.56 : x
  2. Step 2: Convert to fraction form
    210,985.98/291,163.86 = 115,501.56/x
  3. Step 3: Cross multiply
    210,985.98x = 291,163.86 × 115,501.56
  4. Step 4: Simplify right side
    210,985.98x = 33,629,880,045.62
  5. Step 5: Solve for x
    x = 33,629,880,045.62/210,985.98
  6. Step 6: Final answer
    x = 159,393.91

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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.