Home / 405,149.80-607,667.10-124,695.40

Finding the Fourth Proportional to 405,149.80, 607,667.10 and 124,695.40

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Solution

The fourth proportional to 405,149.80, 607,667.10 and 124,695.40 is: 187,025.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,149.80 : 607,667.10 = 124,695.40 : x
  2. Step 2: Convert to fraction form
    405,149.80/607,667.10 = 124,695.40/x
  3. Step 3: Cross multiply
    405,149.80x = 607,667.10 × 124,695.40
  4. Step 4: Simplify right side
    405,149.80x = 75,773,292,101.34
  5. Step 5: Solve for x
    x = 75,773,292,101.34/405,149.80
  6. Step 6: Final answer
    x = 187,025.37

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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.