Home / 127,072.80-190,547.64-38,309.76

Finding the Fourth Proportional to 127,072.80, 190,547.64 and 38,309.76

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Solution

The fourth proportional to 127,072.80, 190,547.64 and 38,309.76 is: 57,446.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,072.80 : 190,547.64 = 38,309.76 : x
  2. Step 2: Convert to fraction form
    127,072.80/190,547.64 = 38,309.76/x
  3. Step 3: Cross multiply
    127,072.80x = 190,547.64 × 38,309.76
  4. Step 4: Simplify right side
    127,072.80x = 7,299,834,356.97
  5. Step 5: Solve for x
    x = 7,299,834,356.97/127,072.80
  6. Step 6: Final answer
    x = 57,446.08

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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.