Home / 92,541.61-138,462.45-86,942.89

Finding the Fourth Proportional to 92,541.61, 138,462.45 and 86,942.89

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Solution

The fourth proportional to 92,541.61, 138,462.45 and 86,942.89 is: 130,085.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,541.61 : 138,462.45 = 86,942.89 : x
  2. Step 2: Convert to fraction form
    92,541.61/138,462.45 = 86,942.89/x
  3. Step 3: Cross multiply
    92,541.61x = 138,462.45 × 86,942.89
  4. Step 4: Simplify right side
    92,541.61x = 12,038,325,559.48
  5. Step 5: Solve for x
    x = 12,038,325,559.48/92,541.61
  6. Step 6: Final answer
    x = 130,085.54

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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.