Home / 108,045.12-149,109.75-60,307.80

Finding the Fourth Proportional to 108,045.12, 149,109.75 and 60,307.80

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Solution

The fourth proportional to 108,045.12, 149,109.75 and 60,307.80 is: 83,228.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,045.12 : 149,109.75 = 60,307.80 : x
  2. Step 2: Convert to fraction form
    108,045.12/149,109.75 = 60,307.80/x
  3. Step 3: Cross multiply
    108,045.12x = 149,109.75 × 60,307.80
  4. Step 4: Simplify right side
    108,045.12x = 8,992,480,981.05
  5. Step 5: Solve for x
    x = 8,992,480,981.05/108,045.12
  6. Step 6: Final answer
    x = 83,228.94

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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.