Home / 99,188.26-136,903.62-56,771.40

Finding the Fourth Proportional to 99,188.26, 136,903.62 and 56,771.40

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Solution

The fourth proportional to 99,188.26, 136,903.62 and 56,771.40 is: 78,358.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,188.26 : 136,903.62 = 56,771.40 : x
  2. Step 2: Convert to fraction form
    99,188.26/136,903.62 = 56,771.40/x
  3. Step 3: Cross multiply
    99,188.26x = 136,903.62 × 56,771.40
  4. Step 4: Simplify right side
    99,188.26x = 7,772,210,172.47
  5. Step 5: Solve for x
    x = 7,772,210,172.47/99,188.26
  6. Step 6: Final answer
    x = 78,358.17

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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.