Home / 137,099,013.66-189,146,990.82-90,081,395.04

Finding the Fourth Proportional to 137,099,013.66, 189,146,990.82 and 90,081,395.04

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Solution

The fourth proportional to 137,099,013.66, 189,146,990.82 and 90,081,395.04 is: 124,279,703.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,099,013.66 : 189,146,990.82 = 90,081,395.04 : x
  2. Step 2: Convert to fraction form
    137,099,013.66/189,146,990.82 = 90,081,395.04/x
  3. Step 3: Cross multiply
    137,099,013.66x = 189,146,990.82 × 90,081,395.04
  4. Step 4: Simplify right side
    137,099,013.66x = 17,038,624,800,683,674
  5. Step 5: Solve for x
    x = 17,038,624,800,683,674/137,099,013.66
  6. Step 6: Final answer
    x = 124,279,703.74

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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.