Home / 135,258.18-186,646-74,827.53

Finding the Fourth Proportional to 135,258.18, 186,646 and 74,827.53

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Solution

The fourth proportional to 135,258.18, 186,646 and 74,827.53 is: 103,256.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,258.18 : 186,646 = 74,827.53 : x
  2. Step 2: Convert to fraction form
    135,258.18/186,646 = 74,827.53/x
  3. Step 3: Cross multiply
    135,258.18x = 186,646 × 74,827.53
  4. Step 4: Simplify right side
    135,258.18x = 13,966,259,164.38
  5. Step 5: Solve for x
    x = 13,966,259,164.38/135,258.18
  6. Step 6: Final answer
    x = 103,256.30

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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.