Home / 103,857.40-143,323.03-56,110.60

Finding the Fourth Proportional to 103,857.40, 143,323.03 and 56,110.60

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Solution

The fourth proportional to 103,857.40, 143,323.03 and 56,110.60 is: 77,432.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,857.40 : 143,323.03 = 56,110.60 : x
  2. Step 2: Convert to fraction form
    103,857.40/143,323.03 = 56,110.60/x
  3. Step 3: Cross multiply
    103,857.40x = 143,323.03 × 56,110.60
  4. Step 4: Simplify right side
    103,857.40x = 8,041,941,207.12
  5. Step 5: Solve for x
    x = 8,041,941,207.12/103,857.40
  6. Step 6: Final answer
    x = 77,432.53

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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.