Home / 103,560.39-142,911.20-57,619.01

Finding the Fourth Proportional to 103,560.39, 142,911.20 and 57,619.01

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Solution

The fourth proportional to 103,560.39, 142,911.20 and 57,619.01 is: 79,513.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,560.39 : 142,911.20 = 57,619.01 : x
  2. Step 2: Convert to fraction form
    103,560.39/142,911.20 = 57,619.01/x
  3. Step 3: Cross multiply
    103,560.39x = 142,911.20 × 57,619.01
  4. Step 4: Simplify right side
    103,560.39x = 8,234,402,363.24
  5. Step 5: Solve for x
    x = 8,234,402,363.24/103,560.39
  6. Step 6: Final answer
    x = 79,513.05

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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.