Home / 131,864.85-181,973.96-71,435.34

Finding the Fourth Proportional to 131,864.85, 181,973.96 and 71,435.34

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Solution

The fourth proportional to 131,864.85, 181,973.96 and 71,435.34 is: 98,581.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,864.85 : 181,973.96 = 71,435.34 : x
  2. Step 2: Convert to fraction form
    131,864.85/181,973.96 = 71,435.34/x
  3. Step 3: Cross multiply
    131,864.85x = 181,973.96 × 71,435.34
  4. Step 4: Simplify right side
    131,864.85x = 12,999,371,703.75
  5. Step 5: Solve for x
    x = 12,999,371,703.75/131,864.85
  6. Step 6: Final answer
    x = 98,581.02

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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.