Home / 211,142.34-291,266.01-130,544.10

Finding the Fourth Proportional to 211,142.34, 291,266.01 and 130,544.10

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Solution

The fourth proportional to 211,142.34, 291,266.01 and 130,544.10 is: 180,082.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,142.34 : 291,266.01 = 130,544.10 : x
  2. Step 2: Convert to fraction form
    211,142.34/291,266.01 = 130,544.10/x
  3. Step 3: Cross multiply
    211,142.34x = 291,266.01 × 130,544.10
  4. Step 4: Simplify right side
    211,142.34x = 38,023,059,136.04
  5. Step 5: Solve for x
    x = 38,023,059,136.04/211,142.34
  6. Step 6: Final answer
    x = 180,082.59

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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.