Home / 211,529.20-291,829.80-135,051.20

Finding the Fourth Proportional to 211,529.20, 291,829.80 and 135,051.20

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Solution

The fourth proportional to 211,529.20, 291,829.80 and 135,051.20 is: 186,319.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,529.20 : 291,829.80 = 135,051.20 : x
  2. Step 2: Convert to fraction form
    211,529.20/291,829.80 = 135,051.20/x
  3. Step 3: Cross multiply
    211,529.20x = 291,829.80 × 135,051.20
  4. Step 4: Simplify right side
    211,529.20x = 39,411,964,685.76
  5. Step 5: Solve for x
    x = 39,411,964,685.76/211,529.20
  6. Step 6: Final answer
    x = 186,319.26

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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.