Home / 122,659.90-183,989.70-38,426.62

Finding the Fourth Proportional to 122,659.90, 183,989.70 and 38,426.62

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Solution

The fourth proportional to 122,659.90, 183,989.70 and 38,426.62 is: 57,639.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,659.90 : 183,989.70 = 38,426.62 : x
  2. Step 2: Convert to fraction form
    122,659.90/183,989.70 = 38,426.62/x
  3. Step 3: Cross multiply
    122,659.90x = 183,989.70 × 38,426.62
  4. Step 4: Simplify right side
    122,659.90x = 7,070,102,285.81
  5. Step 5: Solve for x
    x = 7,070,102,285.81/122,659.90
  6. Step 6: Final answer
    x = 57,639.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.