Home / 185,731.72-256,307.12-105,157.14

Finding the Fourth Proportional to 185,731.72, 256,307.12 and 105,157.14

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Solution

The fourth proportional to 185,731.72, 256,307.12 and 105,157.14 is: 145,115.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,731.72 : 256,307.12 = 105,157.14 : x
  2. Step 2: Convert to fraction form
    185,731.72/256,307.12 = 105,157.14/x
  3. Step 3: Cross multiply
    185,731.72x = 256,307.12 × 105,157.14
  4. Step 4: Simplify right side
    185,731.72x = 26,952,523,700.84
  5. Step 5: Solve for x
    x = 26,952,523,700.84/185,731.72
  6. Step 6: Final answer
    x = 145,115.35

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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.