Home / 211,080.23-291,341.98-130,459.21

Finding the Fourth Proportional to 211,080.23, 291,341.98 and 130,459.21

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Solution

The fourth proportional to 211,080.23, 291,341.98 and 130,459.21 is: 180,065.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,080.23 : 291,341.98 = 130,459.21 : x
  2. Step 2: Convert to fraction form
    211,080.23/291,341.98 = 130,459.21/x
  3. Step 3: Cross multiply
    211,080.23x = 291,341.98 × 130,459.21
  4. Step 4: Simplify right side
    211,080.23x = 38,008,243,093.93
  5. Step 5: Solve for x
    x = 38,008,243,093.93/211,080.23
  6. Step 6: Final answer
    x = 180,065.39

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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.