Home / 231,300.90-346,951.35-81,710.10

Finding the Fourth Proportional to 231,300.90, 346,951.35 and 81,710.10

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Solution

The fourth proportional to 231,300.90, 346,951.35 and 81,710.10 is: 122,565.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,300.90 : 346,951.35 = 81,710.10 : x
  2. Step 2: Convert to fraction form
    231,300.90/346,951.35 = 81,710.10/x
  3. Step 3: Cross multiply
    231,300.90x = 346,951.35 × 81,710.10
  4. Step 4: Simplify right side
    231,300.90x = 28,349,429,503.64
  5. Step 5: Solve for x
    x = 28,349,429,503.64/231,300.90
  6. Step 6: Final answer
    x = 122,565.15

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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.