Home / 136,617.17-188,532.90-75,365.70

Finding the Fourth Proportional to 136,617.17, 188,532.90 and 75,365.70

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Solution

The fourth proportional to 136,617.17, 188,532.90 and 75,365.70 is: 104,005.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,617.17 : 188,532.90 = 75,365.70 : x
  2. Step 2: Convert to fraction form
    136,617.17/188,532.90 = 75,365.70/x
  3. Step 3: Cross multiply
    136,617.17x = 188,532.90 × 75,365.70
  4. Step 4: Simplify right side
    136,617.17x = 14,208,913,981.53
  5. Step 5: Solve for x
    x = 14,208,913,981.53/136,617.17
  6. Step 6: Final answer
    x = 104,005.33

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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.