Home / 137,557.73-189,838.74-77,132.24

Finding the Fourth Proportional to 137,557.73, 189,838.74 and 77,132.24

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Solution

The fourth proportional to 137,557.73, 189,838.74 and 77,132.24 is: 106,447.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,557.73 : 189,838.74 = 77,132.24 : x
  2. Step 2: Convert to fraction form
    137,557.73/189,838.74 = 77,132.24/x
  3. Step 3: Cross multiply
    137,557.73x = 189,838.74 × 77,132.24
  4. Step 4: Simplify right side
    137,557.73x = 14,642,686,305.78
  5. Step 5: Solve for x
    x = 14,642,686,305.78/137,557.73
  6. Step 6: Final answer
    x = 106,447.58

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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.