Home / 103,065.78-142,258.77-60,637.98

Finding the Fourth Proportional to 103,065.78, 142,258.77 and 60,637.98

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Solution

The fourth proportional to 103,065.78, 142,258.77 and 60,637.98 is: 83,696.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,065.78 : 142,258.77 = 60,637.98 : x
  2. Step 2: Convert to fraction form
    103,065.78/142,258.77 = 60,637.98/x
  3. Step 3: Cross multiply
    103,065.78x = 142,258.77 × 60,637.98
  4. Step 4: Simplify right side
    103,065.78x = 8,626,284,450.08
  5. Step 5: Solve for x
    x = 8,626,284,450.08/103,065.78
  6. Step 6: Final answer
    x = 83,696.88

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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.