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Finding the Fourth Proportional to 133,307.88, 183,775.08 and 90,812.04

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Solution

The fourth proportional to 133,307.88, 183,775.08 and 90,812.04 is: 125,191.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,307.88 : 183,775.08 = 90,812.04 : x
  2. Step 2: Convert to fraction form
    133,307.88/183,775.08 = 90,812.04/x
  3. Step 3: Cross multiply
    133,307.88x = 183,775.08 × 90,812.04
  4. Step 4: Simplify right side
    133,307.88x = 16,688,989,915.96
  5. Step 5: Solve for x
    x = 16,688,989,915.96/133,307.88
  6. Step 6: Final answer
    x = 125,191.32

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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.