Home / 286,132.25-429,274.92-99,143.75

Finding the Fourth Proportional to 286,132.25, 429,274.92 and 99,143.75

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Solution

The fourth proportional to 286,132.25, 429,274.92 and 99,143.75 is: 148,742.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,132.25 : 429,274.92 = 99,143.75 : x
  2. Step 2: Convert to fraction form
    286,132.25/429,274.92 = 99,143.75/x
  3. Step 3: Cross multiply
    286,132.25x = 429,274.92 × 99,143.75
  4. Step 4: Simplify right side
    286,132.25x = 42,559,925,349.75
  5. Step 5: Solve for x
    x = 42,559,925,349.75/286,132.25
  6. Step 6: Final answer
    x = 148,742.15

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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.