Home / 127,139.14-175,453.05-70,551.46

Finding the Fourth Proportional to 127,139.14, 175,453.05 and 70,551.46

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Solution

The fourth proportional to 127,139.14, 175,453.05 and 70,551.46 is: 97,361.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,139.14 : 175,453.05 = 70,551.46 : x
  2. Step 2: Convert to fraction form
    127,139.14/175,453.05 = 70,551.46/x
  3. Step 3: Cross multiply
    127,139.14x = 175,453.05 × 70,551.46
  4. Step 4: Simplify right side
    127,139.14x = 12,378,468,838.95
  5. Step 5: Solve for x
    x = 12,378,468,838.95/127,139.14
  6. Step 6: Final answer
    x = 97,361.59

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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.