Home / 138,750.56-191,475.77-75,088.37

Finding the Fourth Proportional to 138,750.56, 191,475.77 and 75,088.37

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Solution

The fourth proportional to 138,750.56, 191,475.77 and 75,088.37 is: 103,621.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,750.56 : 191,475.77 = 75,088.37 : x
  2. Step 2: Convert to fraction form
    138,750.56/191,475.77 = 75,088.37/x
  3. Step 3: Cross multiply
    138,750.56x = 191,475.77 × 75,088.37
  4. Step 4: Simplify right side
    138,750.56x = 14,377,602,130.97
  5. Step 5: Solve for x
    x = 14,377,602,130.97/138,750.56
  6. Step 6: Final answer
    x = 103,621.94

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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.