Home / 102,164.68-140,985.06-56,841.76

Finding the Fourth Proportional to 102,164.68, 140,985.06 and 56,841.76

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Solution

The fourth proportional to 102,164.68, 140,985.06 and 56,841.76 is: 78,440.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,164.68 : 140,985.06 = 56,841.76 : x
  2. Step 2: Convert to fraction form
    102,164.68/140,985.06 = 56,841.76/x
  3. Step 3: Cross multiply
    102,164.68x = 140,985.06 × 56,841.76
  4. Step 4: Simplify right side
    102,164.68x = 8,013,838,944.11
  5. Step 5: Solve for x
    x = 8,013,838,944.11/102,164.68
  6. Step 6: Final answer
    x = 78,440.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.