Home / 92,678.82-138,339.98-79,615.14

Finding the Fourth Proportional to 92,678.82, 138,339.98 and 79,615.14

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Solution

The fourth proportional to 92,678.82, 138,339.98 and 79,615.14 is: 118,840.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,678.82 : 138,339.98 = 79,615.14 : x
  2. Step 2: Convert to fraction form
    92,678.82/138,339.98 = 79,615.14/x
  3. Step 3: Cross multiply
    92,678.82x = 138,339.98 × 79,615.14
  4. Step 4: Simplify right side
    92,678.82x = 11,013,956,875.30
  5. Step 5: Solve for x
    x = 11,013,956,875.30/92,678.82
  6. Step 6: Final answer
    x = 118,840.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.