Home / 131,726.88-181,783.58-71,298.32

Finding the Fourth Proportional to 131,726.88, 181,783.58 and 71,298.32

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Solution

The fourth proportional to 131,726.88, 181,783.58 and 71,298.32 is: 98,391.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,726.88 : 181,783.58 = 71,298.32 : x
  2. Step 2: Convert to fraction form
    131,726.88/181,783.58 = 71,298.32/x
  3. Step 3: Cross multiply
    131,726.88x = 181,783.58 × 71,298.32
  4. Step 4: Simplify right side
    131,726.88x = 12,960,862,592.18
  5. Step 5: Solve for x
    x = 12,960,862,592.18/131,726.88
  6. Step 6: Final answer
    x = 98,391.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.