Home / 98,689.16-136,204.02-56,237.96

Finding the Fourth Proportional to 98,689.16, 136,204.02 and 56,237.96

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Solution

The fourth proportional to 98,689.16, 136,204.02 and 56,237.96 is: 77,615.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,689.16 : 136,204.02 = 56,237.96 : x
  2. Step 2: Convert to fraction form
    98,689.16/136,204.02 = 56,237.96/x
  3. Step 3: Cross multiply
    98,689.16x = 136,204.02 × 56,237.96
  4. Step 4: Simplify right side
    98,689.16x = 7,659,836,228.60
  5. Step 5: Solve for x
    x = 7,659,836,228.60/98,689.16
  6. Step 6: Final answer
    x = 77,615.78

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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.