Home / 210,116-289,984.36-116,991.10

Finding the Fourth Proportional to 210,116, 289,984.36 and 116,991.10

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Solution

The fourth proportional to 210,116, 289,984.36 and 116,991.10 is: 161,461.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,116 : 289,984.36 = 116,991.10 : x
  2. Step 2: Convert to fraction form
    210,116/289,984.36 = 116,991.10/x
  3. Step 3: Cross multiply
    210,116x = 289,984.36 × 116,991.10
  4. Step 4: Simplify right side
    210,116x = 33,925,589,259.20
  5. Step 5: Solve for x
    x = 33,925,589,259.20/210,116
  6. Step 6: Final answer
    x = 161,461.24

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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.