Home / 103,907.34-143,392.09-56,160.69

Finding the Fourth Proportional to 103,907.34, 143,392.09 and 56,160.69

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Solution

The fourth proportional to 103,907.34, 143,392.09 and 56,160.69 is: 77,501.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,907.34 : 143,392.09 = 56,160.69 : x
  2. Step 2: Convert to fraction form
    103,907.34/143,392.09 = 56,160.69/x
  3. Step 3: Cross multiply
    103,907.34x = 143,392.09 × 56,160.69
  4. Step 4: Simplify right side
    103,907.34x = 8,052,998,702.31
  5. Step 5: Solve for x
    x = 8,052,998,702.31/103,907.34
  6. Step 6: Final answer
    x = 77,501.73

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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.