Home / 138,557.52-191,210.76-74,896.56

Finding the Fourth Proportional to 138,557.52, 191,210.76 and 74,896.56

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Solution

The fourth proportional to 138,557.52, 191,210.76 and 74,896.56 is: 103,358.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,557.52 : 191,210.76 = 74,896.56 : x
  2. Step 2: Convert to fraction form
    138,557.52/191,210.76 = 74,896.56/x
  3. Step 3: Cross multiply
    138,557.52x = 191,210.76 × 74,896.56
  4. Step 4: Simplify right side
    138,557.52x = 14,321,028,158.99
  5. Step 5: Solve for x
    x = 14,321,028,158.99/138,557.52
  6. Step 6: Final answer
    x = 103,358.00

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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.