Home / 127,338.24-175,731.20-70,752

Finding the Fourth Proportional to 127,338.24, 175,731.20 and 70,752

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Solution

The fourth proportional to 127,338.24, 175,731.20 and 70,752 is: 97,640.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,338.24 : 175,731.20 = 70,752 : x
  2. Step 2: Convert to fraction form
    127,338.24/175,731.20 = 70,752/x
  3. Step 3: Cross multiply
    127,338.24x = 175,731.20 × 70,752
  4. Step 4: Simplify right side
    127,338.24x = 12,433,333,862.40
  5. Step 5: Solve for x
    x = 12,433,333,862.40/127,338.24
  6. Step 6: Final answer
    x = 97,640.22

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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.