Home / 98,690.40-147,962.64-51,237.36

Finding the Fourth Proportional to 98,690.40, 147,962.64 and 51,237.36

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Solution

The fourth proportional to 98,690.40, 147,962.64 and 51,237.36 is: 76,818.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,690.40 : 147,962.64 = 51,237.36 : x
  2. Step 2: Convert to fraction form
    98,690.40/147,962.64 = 51,237.36/x
  3. Step 3: Cross multiply
    98,690.40x = 147,962.64 × 51,237.36
  4. Step 4: Simplify right side
    98,690.40x = 7,581,215,052.23
  5. Step 5: Solve for x
    x = 7,581,215,052.23/98,690.40
  6. Step 6: Final answer
    x = 76,818.16

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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.