Home / 103,215.03-142,403.13-60,184.80

Finding the Fourth Proportional to 103,215.03, 142,403.13 and 60,184.80

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Solution

The fourth proportional to 103,215.03, 142,403.13 and 60,184.80 is: 83,035.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,215.03 : 142,403.13 = 60,184.80 : x
  2. Step 2: Convert to fraction form
    103,215.03/142,403.13 = 60,184.80/x
  3. Step 3: Cross multiply
    103,215.03x = 142,403.13 × 60,184.80
  4. Step 4: Simplify right side
    103,215.03x = 8,570,503,898.42
  5. Step 5: Solve for x
    x = 8,570,503,898.42/103,215.03
  6. Step 6: Final answer
    x = 83,035.43

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1.5x scale

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.