Home / 134,899.31-186,158.75-74,468.40

Finding the Fourth Proportional to 134,899.31, 186,158.75 and 74,468.40

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Solution

The fourth proportional to 134,899.31, 186,158.75 and 74,468.40 is: 102,765.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,899.31 : 186,158.75 = 74,468.40 : x
  2. Step 2: Convert to fraction form
    134,899.31/186,158.75 = 74,468.40/x
  3. Step 3: Cross multiply
    134,899.31x = 186,158.75 × 74,468.40
  4. Step 4: Simplify right side
    134,899.31x = 13,862,943,886.16
  5. Step 5: Solve for x
    x = 13,862,943,886.16/134,899.31
  6. Step 6: Final answer
    x = 102,765.12

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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.