Home / 138,931.02-191,724.44-75,268.94

Finding the Fourth Proportional to 138,931.02, 191,724.44 and 75,268.94

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Solution

The fourth proportional to 138,931.02, 191,724.44 and 75,268.94 is: 103,870.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,931.02 : 191,724.44 = 75,268.94 : x
  2. Step 2: Convert to fraction form
    138,931.02/191,724.44 = 75,268.94/x
  3. Step 3: Cross multiply
    138,931.02x = 191,724.44 × 75,268.94
  4. Step 4: Simplify right side
    138,931.02x = 14,430,894,035.93
  5. Step 5: Solve for x
    x = 14,430,894,035.93/138,931.02
  6. Step 6: Final answer
    x = 103,870.93

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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.