Home / 136,088.98-204,106.05-85,465.40

Finding the Fourth Proportional to 136,088.98, 204,106.05 and 85,465.40

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Solution

The fourth proportional to 136,088.98, 204,106.05 and 85,465.40 is: 128,180.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,088.98 : 204,106.05 = 85,465.40 : x
  2. Step 2: Convert to fraction form
    136,088.98/204,106.05 = 85,465.40/x
  3. Step 3: Cross multiply
    136,088.98x = 204,106.05 × 85,465.40
  4. Step 4: Simplify right side
    136,088.98x = 17,444,004,185.14
  5. Step 5: Solve for x
    x = 17,444,004,185.14/136,088.98
  6. Step 6: Final answer
    x = 128,180.87

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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.