Home / 103,042.60-155,383.76-101,637.45

Finding the Fourth Proportional to 103,042.60, 155,383.76 and 101,637.45

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Solution

The fourth proportional to 103,042.60, 155,383.76 and 101,637.45 is: 153,264.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,042.60 : 155,383.76 = 101,637.45 : x
  2. Step 2: Convert to fraction form
    103,042.60/155,383.76 = 101,637.45/x
  3. Step 3: Cross multiply
    103,042.60x = 155,383.76 × 101,637.45
  4. Step 4: Simplify right side
    103,042.60x = 15,792,809,137.81
  5. Step 5: Solve for x
    x = 15,792,809,137.81/103,042.60
  6. Step 6: Final answer
    x = 153,264.85

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.