Home / 104,715.59-144,503.29-56,969.12

Finding the Fourth Proportional to 104,715.59, 144,503.29 and 56,969.12

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Solution

The fourth proportional to 104,715.59, 144,503.29 and 56,969.12 is: 78,615.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,715.59 : 144,503.29 = 56,969.12 : x
  2. Step 2: Convert to fraction form
    104,715.59/144,503.29 = 56,969.12/x
  3. Step 3: Cross multiply
    104,715.59x = 144,503.29 × 56,969.12
  4. Step 4: Simplify right side
    104,715.59x = 8,232,225,700.87
  5. Step 5: Solve for x
    x = 8,232,225,700.87/104,715.59
  6. Step 6: Final answer
    x = 78,615.10

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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.