Home / 104,920.40-157,427.08-54,988.56

Finding the Fourth Proportional to 104,920.40, 157,427.08 and 54,988.56

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Solution

The fourth proportional to 104,920.40, 157,427.08 and 54,988.56 is: 82,507.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,920.40 : 157,427.08 = 54,988.56 : x
  2. Step 2: Convert to fraction form
    104,920.40/157,427.08 = 54,988.56/x
  3. Step 3: Cross multiply
    104,920.40x = 157,427.08 × 54,988.56
  4. Step 4: Simplify right side
    104,920.40x = 8,656,688,434.20
  5. Step 5: Solve for x
    x = 8,656,688,434.20/104,920.40
  6. Step 6: Final answer
    x = 82,507.20

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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.