Home / 286,135.76-429,280.18-99,147.26

Finding the Fourth Proportional to 286,135.76, 429,280.18 and 99,147.26

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Solution

The fourth proportional to 286,135.76, 429,280.18 and 99,147.26 is: 148,747.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,135.76 : 429,280.18 = 99,147.26 : x
  2. Step 2: Convert to fraction form
    286,135.76/429,280.18 = 99,147.26/x
  3. Step 3: Cross multiply
    286,135.76x = 429,280.18 × 99,147.26
  4. Step 4: Simplify right side
    286,135.76x = 42,561,953,619.31
  5. Step 5: Solve for x
    x = 42,561,953,619.31/286,135.76
  6. Step 6: Final answer
    x = 148,747.41

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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.