Home / 136,847.36-205,205.28-70,253.12

Finding the Fourth Proportional to 136,847.36, 205,205.28 and 70,253.12

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Solution

The fourth proportional to 136,847.36, 205,205.28 and 70,253.12 is: 105,345.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,847.36 : 205,205.28 = 70,253.12 : x
  2. Step 2: Convert to fraction form
    136,847.36/205,205.28 = 70,253.12/x
  3. Step 3: Cross multiply
    136,847.36x = 205,205.28 × 70,253.12
  4. Step 4: Simplify right side
    136,847.36x = 14,416,311,160.47
  5. Step 5: Solve for x
    x = 14,416,311,160.47/136,847.36
  6. Step 6: Final answer
    x = 105,345.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.