Home / 103,443.12-142,767.72-61,006.32

Finding the Fourth Proportional to 103,443.12, 142,767.72 and 61,006.32

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Solution

The fourth proportional to 103,443.12, 142,767.72 and 61,006.32 is: 84,198.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,443.12 : 142,767.72 = 61,006.32 : x
  2. Step 2: Convert to fraction form
    103,443.12/142,767.72 = 61,006.32/x
  3. Step 3: Cross multiply
    103,443.12x = 142,767.72 × 61,006.32
  4. Step 4: Simplify right side
    103,443.12x = 8,709,733,211.99
  5. Step 5: Solve for x
    x = 8,709,733,211.99/103,443.12
  6. Step 6: Final answer
    x = 84,198.28

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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.