Home / 210,970.09-291,081.14-120,292.98

Finding the Fourth Proportional to 210,970.09, 291,081.14 and 120,292.98

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Solution

The fourth proportional to 210,970.09, 291,081.14 and 120,292.98 is: 165,971.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,970.09 : 291,081.14 = 120,292.98 : x
  2. Step 2: Convert to fraction form
    210,970.09/291,081.14 = 120,292.98/x
  3. Step 3: Cross multiply
    210,970.09x = 291,081.14 × 120,292.98
  4. Step 4: Simplify right side
    210,970.09x = 35,015,017,752.40
  5. Step 5: Solve for x
    x = 35,015,017,752.40/210,970.09
  6. Step 6: Final answer
    x = 165,971.48

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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.