Home / 149,258.19-205,973.35-81,275.97

Finding the Fourth Proportional to 149,258.19, 205,973.35 and 81,275.97

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Solution

The fourth proportional to 149,258.19, 205,973.35 and 81,275.97 is: 112,159.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,258.19 : 205,973.35 = 81,275.97 : x
  2. Step 2: Convert to fraction form
    149,258.19/205,973.35 = 81,275.97/x
  3. Step 3: Cross multiply
    149,258.19x = 205,973.35 × 81,275.97
  4. Step 4: Simplify right side
    149,258.19x = 16,740,684,384.61
  5. Step 5: Solve for x
    x = 16,740,684,384.61/149,258.19
  6. Step 6: Final answer
    x = 112,159.23

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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.