Home / 134,970.72-186,261-74,542.90

Finding the Fourth Proportional to 134,970.72, 186,261 and 74,542.90

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Solution

The fourth proportional to 134,970.72, 186,261 and 74,542.90 is: 102,869.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,970.72 : 186,261 = 74,542.90 : x
  2. Step 2: Convert to fraction form
    134,970.72/186,261 = 74,542.90/x
  3. Step 3: Cross multiply
    134,970.72x = 186,261 × 74,542.90
  4. Step 4: Simplify right side
    134,970.72x = 13,884,434,631.25
  5. Step 5: Solve for x
    x = 13,884,434,631.25/134,970.72
  6. Step 6: Final answer
    x = 102,869.98

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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.