Home / 211,147.36-291,412.34-129,461.16

Finding the Fourth Proportional to 211,147.36, 291,412.34 and 129,461.16

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Solution

The fourth proportional to 211,147.36, 291,412.34 and 129,461.16 is: 178,674.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,147.36 : 291,412.34 = 129,461.16 : x
  2. Step 2: Convert to fraction form
    211,147.36/291,412.34 = 129,461.16/x
  3. Step 3: Cross multiply
    211,147.36x = 291,412.34 × 129,461.16
  4. Step 4: Simplify right side
    211,147.36x = 37,726,579,574.71
  5. Step 5: Solve for x
    x = 37,726,579,574.71/211,147.36
  6. Step 6: Final answer
    x = 178,674.17

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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.