Home / 99,171.36-136,856.70-53,849.34

Finding the Fourth Proportional to 99,171.36, 136,856.70 and 53,849.34

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Solution

The fourth proportional to 99,171.36, 136,856.70 and 53,849.34 is: 74,312.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,171.36 : 136,856.70 = 53,849.34 : x
  2. Step 2: Convert to fraction form
    99,171.36/136,856.70 = 53,849.34/x
  3. Step 3: Cross multiply
    99,171.36x = 136,856.70 × 53,849.34
  4. Step 4: Simplify right side
    99,171.36x = 7,369,642,969.58
  5. Step 5: Solve for x
    x = 7,369,642,969.58/99,171.36
  6. Step 6: Final answer
    x = 74,312.21

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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.