Home / 135,088.64-186,409.40-74,649.52

Finding the Fourth Proportional to 135,088.64, 186,409.40 and 74,649.52

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Solution

The fourth proportional to 135,088.64, 186,409.40 and 74,649.52 is: 103,009.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,088.64 : 186,409.40 = 74,649.52 : x
  2. Step 2: Convert to fraction form
    135,088.64/186,409.40 = 74,649.52/x
  3. Step 3: Cross multiply
    135,088.64x = 186,409.40 × 74,649.52
  4. Step 4: Simplify right side
    135,088.64x = 13,915,373,037.43
  5. Step 5: Solve for x
    x = 13,915,373,037.43/135,088.64
  6. Step 6: Final answer
    x = 103,009.21

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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.