Home / 125,421.81-188,161.44-54,356.37

Finding the Fourth Proportional to 125,421.81, 188,161.44 and 54,356.37

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Solution

The fourth proportional to 125,421.81, 188,161.44 and 54,356.37 is: 81,547.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,421.81 : 188,161.44 = 54,356.37 : x
  2. Step 2: Convert to fraction form
    125,421.81/188,161.44 = 54,356.37/x
  3. Step 3: Cross multiply
    125,421.81x = 188,161.44 × 54,356.37
  4. Step 4: Simplify right side
    125,421.81x = 10,227,772,095.81
  5. Step 5: Solve for x
    x = 10,227,772,095.81/125,421.81
  6. Step 6: Final answer
    x = 81,547.00

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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.