Home / 134,854.81-185,994.47-86,461.36

Finding the Fourth Proportional to 134,854.81, 185,994.47 and 86,461.36

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Solution

The fourth proportional to 134,854.81, 185,994.47 and 86,461.36 is: 119,249.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,854.81 : 185,994.47 = 86,461.36 : x
  2. Step 2: Convert to fraction form
    134,854.81/185,994.47 = 86,461.36/x
  3. Step 3: Cross multiply
    134,854.81x = 185,994.47 × 86,461.36
  4. Step 4: Simplify right side
    134,854.81x = 16,081,334,579.85
  5. Step 5: Solve for x
    x = 16,081,334,579.85/134,854.81
  6. Step 6: Final answer
    x = 119,249.25

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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.