Home / 104,154.47-143,693.53-76,995.76

Finding the Fourth Proportional to 104,154.47, 143,693.53 and 76,995.76

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Solution

The fourth proportional to 104,154.47, 143,693.53 and 76,995.76 is: 106,224.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,154.47 : 143,693.53 = 76,995.76 : x
  2. Step 2: Convert to fraction form
    104,154.47/143,693.53 = 76,995.76/x
  3. Step 3: Cross multiply
    104,154.47x = 143,693.53 × 76,995.76
  4. Step 4: Simplify right side
    104,154.47x = 11,063,792,079.55
  5. Step 5: Solve for x
    x = 11,063,792,079.55/104,154.47
  6. Step 6: Final answer
    x = 106,224.85

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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.