Home / 137,946.47-190,369.51-77,513.49

Finding the Fourth Proportional to 137,946.47, 190,369.51 and 77,513.49

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Solution

The fourth proportional to 137,946.47, 190,369.51 and 77,513.49 is: 106,970.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,946.47 : 190,369.51 = 77,513.49 : x
  2. Step 2: Convert to fraction form
    137,946.47/190,369.51 = 77,513.49/x
  3. Step 3: Cross multiply
    137,946.47x = 190,369.51 × 77,513.49
  4. Step 4: Simplify right side
    137,946.47x = 14,756,204,915.91
  5. Step 5: Solve for x
    x = 14,756,204,915.91/137,946.47
  6. Step 6: Final answer
    x = 106,970.52

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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.