Home / 457,721.56-686,413.80-158,125.24

Finding the Fourth Proportional to 457,721.56, 686,413.80 and 158,125.24

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Solution

The fourth proportional to 457,721.56, 686,413.80 and 158,125.24 is: 237,129.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,721.56 : 686,413.80 = 158,125.24 : x
  2. Step 2: Convert to fraction form
    457,721.56/686,413.80 = 158,125.24/x
  3. Step 3: Cross multiply
    457,721.56x = 686,413.80 × 158,125.24
  4. Step 4: Simplify right side
    457,721.56x = 108,539,346,864.31
  5. Step 5: Solve for x
    x = 108,539,346,864.31/457,721.56
  6. Step 6: Final answer
    x = 237,129.64

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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.