Home / 91,228.10-136,514.10-61,703.60

Finding the Fourth Proportional to 91,228.10, 136,514.10 and 61,703.60

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Solution

The fourth proportional to 91,228.10, 136,514.10 and 61,703.60 is: 92,333.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,228.10 : 136,514.10 = 61,703.60 : x
  2. Step 2: Convert to fraction form
    91,228.10/136,514.10 = 61,703.60/x
  3. Step 3: Cross multiply
    91,228.10x = 136,514.10 × 61,703.60
  4. Step 4: Simplify right side
    91,228.10x = 8,423,411,420.76
  5. Step 5: Solve for x
    x = 8,423,411,420.76/91,228.10
  6. Step 6: Final answer
    x = 92,333.52

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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.