Home / 186,000.36-256,700.58-105,419.24

Finding the Fourth Proportional to 186,000.36, 256,700.58 and 105,419.24

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Solution

The fourth proportional to 186,000.36, 256,700.58 and 105,419.24 is: 145,489.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,000.36 : 256,700.58 = 105,419.24 : x
  2. Step 2: Convert to fraction form
    186,000.36/256,700.58 = 105,419.24/x
  3. Step 3: Cross multiply
    186,000.36x = 256,700.58 × 105,419.24
  4. Step 4: Simplify right side
    186,000.36x = 27,061,180,051.16
  5. Step 5: Solve for x
    x = 27,061,180,051.16/186,000.36
  6. Step 6: Final answer
    x = 145,489.93

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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.