Home / 133,280.16-183,926.80-76,690.40

Finding the Fourth Proportional to 133,280.16, 183,926.80 and 76,690.40

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Solution

The fourth proportional to 133,280.16, 183,926.80 and 76,690.40 is: 105,832.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,280.16 : 183,926.80 = 76,690.40 : x
  2. Step 2: Convert to fraction form
    133,280.16/183,926.80 = 76,690.40/x
  3. Step 3: Cross multiply
    133,280.16x = 183,926.80 × 76,690.40
  4. Step 4: Simplify right side
    133,280.16x = 14,105,419,862.72
  5. Step 5: Solve for x
    x = 14,105,419,862.72/133,280.16
  6. Step 6: Final answer
    x = 105,832.86

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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.