Home / 104,062.28-143,605.96-56,315.64

Finding the Fourth Proportional to 104,062.28, 143,605.96 and 56,315.64

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Solution

The fourth proportional to 104,062.28, 143,605.96 and 56,315.64 is: 77,715.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,062.28 : 143,605.96 = 56,315.64 : x
  2. Step 2: Convert to fraction form
    104,062.28/143,605.96 = 56,315.64/x
  3. Step 3: Cross multiply
    104,062.28x = 143,605.96 × 56,315.64
  4. Step 4: Simplify right side
    104,062.28x = 8,087,261,545.21
  5. Step 5: Solve for x
    x = 8,087,261,545.21/104,062.28
  6. Step 6: Final answer
    x = 77,715.59

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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.