Home / 134,970.72-186,261-74,542.91

Finding the Fourth Proportional to 134,970.72, 186,261 and 74,542.91

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Solution

The fourth proportional to 134,970.72, 186,261 and 74,542.91 is: 102,869.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,970.72 : 186,261 = 74,542.91 : x
  2. Step 2: Convert to fraction form
    134,970.72/186,261 = 74,542.91/x
  3. Step 3: Cross multiply
    134,970.72x = 186,261 × 74,542.91
  4. Step 4: Simplify right side
    134,970.72x = 13,884,436,028.21
  5. Step 5: Solve for x
    x = 13,884,436,028.21/134,970.72
  6. Step 6: Final answer
    x = 102,869.99

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1.5x scale

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.