Home / 124,001.70-186,075.45-45,123.90

Finding the Fourth Proportional to 124,001.70, 186,075.45 and 45,123.90

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Solution

The fourth proportional to 124,001.70, 186,075.45 and 45,123.90 is: 67,712.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,001.70 : 186,075.45 = 45,123.90 : x
  2. Step 2: Convert to fraction form
    124,001.70/186,075.45 = 45,123.90/x
  3. Step 3: Cross multiply
    124,001.70x = 186,075.45 × 45,123.90
  4. Step 4: Simplify right side
    124,001.70x = 8,396,449,998.26
  5. Step 5: Solve for x
    x = 8,396,449,998.26/124,001.70
  6. Step 6: Final answer
    x = 67,712.38

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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.