Home / 103,370.06-142,703.82-88,423.28

Finding the Fourth Proportional to 103,370.06, 142,703.82 and 88,423.28

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Solution

The fourth proportional to 103,370.06, 142,703.82 and 88,423.28 is: 122,069.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,370.06 : 142,703.82 = 88,423.28 : x
  2. Step 2: Convert to fraction form
    103,370.06/142,703.82 = 88,423.28/x
  3. Step 3: Cross multiply
    103,370.06x = 142,703.82 × 88,423.28
  4. Step 4: Simplify right side
    103,370.06x = 12,618,339,119.41
  5. Step 5: Solve for x
    x = 12,618,339,119.41/103,370.06
  6. Step 6: Final answer
    x = 122,069.58

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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.