Home / 133,122.30-183,708.74-72,693.20

Finding the Fourth Proportional to 133,122.30, 183,708.74 and 72,693.20

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Solution

The fourth proportional to 133,122.30, 183,708.74 and 72,693.20 is: 100,316.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,122.30 : 183,708.74 = 72,693.20 : x
  2. Step 2: Convert to fraction form
    133,122.30/183,708.74 = 72,693.20/x
  3. Step 3: Cross multiply
    133,122.30x = 183,708.74 × 72,693.20
  4. Step 4: Simplify right side
    133,122.30x = 13,354,376,178.57
  5. Step 5: Solve for x
    x = 13,354,376,178.57/133,122.30
  6. Step 6: Final answer
    x = 100,316.60

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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.