Home / 112,802.91-169,090.45-70,712.49

Finding the Fourth Proportional to 112,802.91, 169,090.45 and 70,712.49

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Solution

The fourth proportional to 112,802.91, 169,090.45 and 70,712.49 is: 105,997.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,802.91 : 169,090.45 = 70,712.49 : x
  2. Step 2: Convert to fraction form
    112,802.91/169,090.45 = 70,712.49/x
  3. Step 3: Cross multiply
    112,802.91x = 169,090.45 × 70,712.49
  4. Step 4: Simplify right side
    112,802.91x = 11,956,807,609.79
  5. Step 5: Solve for x
    x = 11,956,807,609.79/112,802.91
  6. Step 6: Final answer
    x = 105,997.33

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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.