Home / 127,536.45-191,042.16-74,818.81

Finding the Fourth Proportional to 127,536.45, 191,042.16 and 74,818.81

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Solution

The fourth proportional to 127,536.45, 191,042.16 and 74,818.81 is: 112,074.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,536.45 : 191,042.16 = 74,818.81 : x
  2. Step 2: Convert to fraction form
    127,536.45/191,042.16 = 74,818.81/x
  3. Step 3: Cross multiply
    127,536.45x = 191,042.16 × 74,818.81
  4. Step 4: Simplify right side
    127,536.45x = 14,293,547,071.03
  5. Step 5: Solve for x
    x = 14,293,547,071.03/127,536.45
  6. Step 6: Final answer
    x = 112,074.21

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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.