Home / 104,247.39-143,860.80-56,500.74

Finding the Fourth Proportional to 104,247.39, 143,860.80 and 56,500.74

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Solution

The fourth proportional to 104,247.39, 143,860.80 and 56,500.74 is: 77,970.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,247.39 : 143,860.80 = 56,500.74 : x
  2. Step 2: Convert to fraction form
    104,247.39/143,860.80 = 56,500.74/x
  3. Step 3: Cross multiply
    104,247.39x = 143,860.80 × 56,500.74
  4. Step 4: Simplify right side
    104,247.39x = 8,128,241,656.99
  5. Step 5: Solve for x
    x = 8,128,241,656.99/104,247.39
  6. Step 6: Final answer
    x = 77,970.70

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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.