Home / 99,130.39-136,800.03-53,808.35

Finding the Fourth Proportional to 99,130.39, 136,800.03 and 53,808.35

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Solution

The fourth proportional to 99,130.39, 136,800.03 and 53,808.35 is: 74,255.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,130.39 : 136,800.03 = 53,808.35 : x
  2. Step 2: Convert to fraction form
    99,130.39/136,800.03 = 53,808.35/x
  3. Step 3: Cross multiply
    99,130.39x = 136,800.03 × 53,808.35
  4. Step 4: Simplify right side
    99,130.39x = 7,360,983,894.25
  5. Step 5: Solve for x
    x = 7,360,983,894.25/99,130.39
  6. Step 6: Final answer
    x = 74,255.57

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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.