Home / 186,310.64-257,114.04-101,429.12

Finding the Fourth Proportional to 186,310.64, 257,114.04 and 101,429.12

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Solution

The fourth proportional to 186,310.64, 257,114.04 and 101,429.12 is: 139,975.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,310.64 : 257,114.04 = 101,429.12 : x
  2. Step 2: Convert to fraction form
    186,310.64/257,114.04 = 101,429.12/x
  3. Step 3: Cross multiply
    186,310.64x = 257,114.04 × 101,429.12
  4. Step 4: Simplify right side
    186,310.64x = 26,078,850,816.84
  5. Step 5: Solve for x
    x = 26,078,850,816.84/186,310.64
  6. Step 6: Final answer
    x = 139,975.10

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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.