Home / 133,120.06-183,700.86-72,689.62

Finding the Fourth Proportional to 133,120.06, 183,700.86 and 72,689.62

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Solution

The fourth proportional to 133,120.06, 183,700.86 and 72,689.62 is: 100,309.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,120.06 : 183,700.86 = 72,689.62 : x
  2. Step 2: Convert to fraction form
    133,120.06/183,700.86 = 72,689.62/x
  3. Step 3: Cross multiply
    133,120.06x = 183,700.86 × 72,689.62
  4. Step 4: Simplify right side
    133,120.06x = 13,353,145,707.07
  5. Step 5: Solve for x
    x = 13,353,145,707.07/133,120.06
  6. Step 6: Final answer
    x = 100,309.04

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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.