Home / 98,387.16-147,659.40-51,015.72

Finding the Fourth Proportional to 98,387.16, 147,659.40 and 51,015.72

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Solution

The fourth proportional to 98,387.16, 147,659.40 and 51,015.72 is: 76,564.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,387.16 : 147,659.40 = 51,015.72 : x
  2. Step 2: Convert to fraction form
    98,387.16/147,659.40 = 51,015.72/x
  3. Step 3: Cross multiply
    98,387.16x = 147,659.40 × 51,015.72
  4. Step 4: Simplify right side
    98,387.16x = 7,532,950,605.77
  5. Step 5: Solve for x
    x = 7,532,950,605.77/98,387.16
  6. Step 6: Final answer
    x = 76,564.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.