Home / 117,495.45-162,143.93-63,780.50

Finding the Fourth Proportional to 117,495.45, 162,143.93 and 63,780.50

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Solution

The fourth proportional to 117,495.45, 162,143.93 and 63,780.50 is: 88,017.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,495.45 : 162,143.93 = 63,780.50 : x
  2. Step 2: Convert to fraction form
    117,495.45/162,143.93 = 63,780.50/x
  3. Step 3: Cross multiply
    117,495.45x = 162,143.93 × 63,780.50
  4. Step 4: Simplify right side
    117,495.45x = 10,341,621,013.82
  5. Step 5: Solve for x
    x = 10,341,621,013.82/117,495.45
  6. Step 6: Final answer
    x = 88,017.20

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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.