Home / 286,128.24-429,192.40-108,635.35

Finding the Fourth Proportional to 286,128.24, 429,192.40 and 108,635.35

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Solution

The fourth proportional to 286,128.24, 429,192.40 and 108,635.35 is: 162,953.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,128.24 : 429,192.40 = 108,635.35 : x
  2. Step 2: Convert to fraction form
    286,128.24/429,192.40 = 108,635.35/x
  3. Step 3: Cross multiply
    286,128.24x = 429,192.40 × 108,635.35
  4. Step 4: Simplify right side
    286,128.24x = 46,625,466,591.34
  5. Step 5: Solve for x
    x = 46,625,466,591.34/286,128.24
  6. Step 6: Final answer
    x = 162,953.04

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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.