Home / 165,830.08-228,851.04-90,381.28

Finding the Fourth Proportional to 165,830.08, 228,851.04 and 90,381.28

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Solution

The fourth proportional to 165,830.08, 228,851.04 and 90,381.28 is: 124,729.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,830.08 : 228,851.04 = 90,381.28 : x
  2. Step 2: Convert to fraction form
    165,830.08/228,851.04 = 90,381.28/x
  3. Step 3: Cross multiply
    165,830.08x = 228,851.04 × 90,381.28
  4. Step 4: Simplify right side
    165,830.08x = 20,683,849,924.53
  5. Step 5: Solve for x
    x = 20,683,849,924.53/165,830.08
  6. Step 6: Final answer
    x = 124,729.18

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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.