Home / 121,269.21-181,987.04-42,383.51

Finding the Fourth Proportional to 121,269.21, 181,987.04 and 42,383.51

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Solution

The fourth proportional to 121,269.21, 181,987.04 and 42,383.51 is: 63,604.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,269.21 : 181,987.04 = 42,383.51 : x
  2. Step 2: Convert to fraction form
    121,269.21/181,987.04 = 42,383.51/x
  3. Step 3: Cross multiply
    121,269.21x = 181,987.04 × 42,383.51
  4. Step 4: Simplify right side
    121,269.21x = 7,713,249,529.71
  5. Step 5: Solve for x
    x = 7,713,249,529.71/121,269.21
  6. Step 6: Final answer
    x = 63,604.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.