Home / 210,869.04-290,996.64-120,222.12

Finding the Fourth Proportional to 210,869.04, 290,996.64 and 120,222.12

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Solution

The fourth proportional to 210,869.04, 290,996.64 and 120,222.12 is: 165,905.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,869.04 : 290,996.64 = 120,222.12 : x
  2. Step 2: Convert to fraction form
    210,869.04/290,996.64 = 120,222.12/x
  3. Step 3: Cross multiply
    210,869.04x = 290,996.64 × 120,222.12
  4. Step 4: Simplify right side
    210,869.04x = 34,984,232,973.68
  5. Step 5: Solve for x
    x = 34,984,232,973.68/210,869.04
  6. Step 6: Final answer
    x = 165,905.02

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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.