Home / 99,098.16-136,750.68-56,661.36

Finding the Fourth Proportional to 99,098.16, 136,750.68 and 56,661.36

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Solution

The fourth proportional to 99,098.16, 136,750.68 and 56,661.36 is: 78,189.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,098.16 : 136,750.68 = 56,661.36 : x
  2. Step 2: Convert to fraction form
    99,098.16/136,750.68 = 56,661.36/x
  3. Step 3: Cross multiply
    99,098.16x = 136,750.68 × 56,661.36
  4. Step 4: Simplify right side
    99,098.16x = 7,748,479,509.72
  5. Step 5: Solve for x
    x = 7,748,479,509.72/99,098.16
  6. Step 6: Final answer
    x = 78,189.94

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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.