Home / 134,999.32-186,298.32-74,574.12

Finding the Fourth Proportional to 134,999.32, 186,298.32 and 74,574.12

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Solution

The fourth proportional to 134,999.32, 186,298.32 and 74,574.12 is: 102,911.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,999.32 : 186,298.32 = 74,574.12 : x
  2. Step 2: Convert to fraction form
    134,999.32/186,298.32 = 74,574.12/x
  3. Step 3: Cross multiply
    134,999.32x = 186,298.32 × 74,574.12
  4. Step 4: Simplify right side
    134,999.32x = 13,893,033,271.48
  5. Step 5: Solve for x
    x = 13,893,033,271.48/134,999.32
  6. Step 6: Final answer
    x = 102,911.88

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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.