Home / 137,411.54-189,639.02-76,995.66

Finding the Fourth Proportional to 137,411.54, 189,639.02 and 76,995.66

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Solution

The fourth proportional to 137,411.54, 189,639.02 and 76,995.66 is: 106,260.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,411.54 : 189,639.02 = 76,995.66 : x
  2. Step 2: Convert to fraction form
    137,411.54/189,639.02 = 76,995.66/x
  3. Step 3: Cross multiply
    137,411.54x = 189,639.02 × 76,995.66
  4. Step 4: Simplify right side
    137,411.54x = 14,601,382,410.29
  5. Step 5: Solve for x
    x = 14,601,382,410.29/137,411.54
  6. Step 6: Final answer
    x = 106,260.24

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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.