Home / 102,071.48-153,110.66-78,414.98

Finding the Fourth Proportional to 102,071.48, 153,110.66 and 78,414.98

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Solution

The fourth proportional to 102,071.48, 153,110.66 and 78,414.98 is: 117,625.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,071.48 : 153,110.66 = 78,414.98 : x
  2. Step 2: Convert to fraction form
    102,071.48/153,110.66 = 78,414.98/x
  3. Step 3: Cross multiply
    102,071.48x = 153,110.66 × 78,414.98
  4. Step 4: Simplify right side
    102,071.48x = 12,006,168,184.06
  5. Step 5: Solve for x
    x = 12,006,168,184.06/102,071.48
  6. Step 6: Final answer
    x = 117,625.11

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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.