Home / 163,551.11-245,421.86-68,774.45

Finding the Fourth Proportional to 163,551.11, 245,421.86 and 68,774.45

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Solution

The fourth proportional to 163,551.11, 245,421.86 and 68,774.45 is: 103,201.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,551.11 : 245,421.86 = 68,774.45 : x
  2. Step 2: Convert to fraction form
    163,551.11/245,421.86 = 68,774.45/x
  3. Step 3: Cross multiply
    163,551.11x = 245,421.86 × 68,774.45
  4. Step 4: Simplify right side
    163,551.11x = 16,878,751,868.50
  5. Step 5: Solve for x
    x = 16,878,751,868.50/163,551.11
  6. Step 6: Final answer
    x = 103,201.70

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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.