Home / 99,209.94-136,911.20-53,888.81

Finding the Fourth Proportional to 99,209.94, 136,911.20 and 53,888.81

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Solution

The fourth proportional to 99,209.94, 136,911.20 and 53,888.81 is: 74,367.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,209.94 : 136,911.20 = 53,888.81 : x
  2. Step 2: Convert to fraction form
    99,209.94/136,911.20 = 53,888.81/x
  3. Step 3: Cross multiply
    99,209.94x = 136,911.20 × 53,888.81
  4. Step 4: Simplify right side
    99,209.94x = 7,377,980,689.67
  5. Step 5: Solve for x
    x = 7,377,980,689.67/99,209.94
  6. Step 6: Final answer
    x = 74,367.35

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1.5x scale

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.