Home / 134,688.32-185,869.08-74,258.72

Finding the Fourth Proportional to 134,688.32, 185,869.08 and 74,258.72

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Solution

The fourth proportional to 134,688.32, 185,869.08 and 74,258.72 is: 102,476.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,688.32 : 185,869.08 = 74,258.72 : x
  2. Step 2: Convert to fraction form
    134,688.32/185,869.08 = 74,258.72/x
  3. Step 3: Cross multiply
    134,688.32x = 185,869.08 × 74,258.72
  4. Step 4: Simplify right side
    134,688.32x = 13,802,399,968.38
  5. Step 5: Solve for x
    x = 13,802,399,968.38/134,688.32
  6. Step 6: Final answer
    x = 102,476.59

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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.