Home / 131,421.86-197,132.77-31,582.06

Finding the Fourth Proportional to 131,421.86, 197,132.77 and 31,582.06

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Solution

The fourth proportional to 131,421.86, 197,132.77 and 31,582.06 is: 47,373.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,421.86 : 197,132.77 = 31,582.06 : x
  2. Step 2: Convert to fraction form
    131,421.86/197,132.77 = 31,582.06/x
  3. Step 3: Cross multiply
    131,421.86x = 197,132.77 × 31,582.06
  4. Step 4: Simplify right side
    131,421.86x = 6,225,858,398.32
  5. Step 5: Solve for x
    x = 6,225,858,398.32/131,421.86
  6. Step 6: Final answer
    x = 47,373.08

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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.