Home / 120,155.13-180,091.22-49,033.40

Finding the Fourth Proportional to 120,155.13, 180,091.22 and 49,033.40

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Solution

The fourth proportional to 120,155.13, 180,091.22 and 49,033.40 is: 73,492.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,155.13 : 180,091.22 = 49,033.40 : x
  2. Step 2: Convert to fraction form
    120,155.13/180,091.22 = 49,033.40/x
  3. Step 3: Cross multiply
    120,155.13x = 180,091.22 × 49,033.40
  4. Step 4: Simplify right side
    120,155.13x = 8,830,483,681.12
  5. Step 5: Solve for x
    x = 8,830,483,681.12/120,155.13
  6. Step 6: Final answer
    x = 73,492.36

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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.