Home / 137,462.16-189,688.80-80,862.60

Finding the Fourth Proportional to 137,462.16, 189,688.80 and 80,862.60

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Solution

The fourth proportional to 137,462.16, 189,688.80 and 80,862.60 is: 111,585.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,462.16 : 189,688.80 = 80,862.60 : x
  2. Step 2: Convert to fraction form
    137,462.16/189,688.80 = 80,862.60/x
  3. Step 3: Cross multiply
    137,462.16x = 189,688.80 × 80,862.60
  4. Step 4: Simplify right side
    137,462.16x = 15,338,729,558.88
  5. Step 5: Solve for x
    x = 15,338,729,558.88/137,462.16
  6. Step 6: Final answer
    x = 111,585.11

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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.