Home / 99,193.05-136,886.49-53,870.85

Finding the Fourth Proportional to 99,193.05, 136,886.49 and 53,870.85

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Solution

The fourth proportional to 99,193.05, 136,886.49 and 53,870.85 is: 74,341.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,193.05 : 136,886.49 = 53,870.85 : x
  2. Step 2: Convert to fraction form
    99,193.05/136,886.49 = 53,870.85/x
  3. Step 3: Cross multiply
    99,193.05x = 136,886.49 × 53,870.85
  4. Step 4: Simplify right side
    99,193.05x = 7,374,191,569.82
  5. Step 5: Solve for x
    x = 7,374,191,569.82/99,193.05
  6. Step 6: Final answer
    x = 74,341.82

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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.