Home / 211,122.72-291,354.17-115,628.58

Finding the Fourth Proportional to 211,122.72, 291,354.17 and 115,628.58

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Solution

The fourth proportional to 211,122.72, 291,354.17 and 115,628.58 is: 159,570.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,122.72 : 291,354.17 = 115,628.58 : x
  2. Step 2: Convert to fraction form
    211,122.72/291,354.17 = 115,628.58/x
  3. Step 3: Cross multiply
    211,122.72x = 291,354.17 × 115,628.58
  4. Step 4: Simplify right side
    211,122.72x = 33,688,868,376.04
  5. Step 5: Solve for x
    x = 33,688,868,376.04/211,122.72
  6. Step 6: Final answer
    x = 159,570.08

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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.