Home / 163,756.08-245,677.05-51,431.76

Finding the Fourth Proportional to 163,756.08, 245,677.05 and 51,431.76

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Solution

The fourth proportional to 163,756.08, 245,677.05 and 51,431.76 is: 77,161.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,756.08 : 245,677.05 = 51,431.76 : x
  2. Step 2: Convert to fraction form
    163,756.08/245,677.05 = 51,431.76/x
  3. Step 3: Cross multiply
    163,756.08x = 245,677.05 × 51,431.76
  4. Step 4: Simplify right side
    163,756.08x = 12,635,603,073.11
  5. Step 5: Solve for x
    x = 12,635,603,073.11/163,756.08
  6. Step 6: Final answer
    x = 77,161.12

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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.