Home / 104,278.26-143,903.12-56,530.38

Finding the Fourth Proportional to 104,278.26, 143,903.12 and 56,530.38

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Solution

The fourth proportional to 104,278.26, 143,903.12 and 56,530.38 is: 78,011.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,278.26 : 143,903.12 = 56,530.38 : x
  2. Step 2: Convert to fraction form
    104,278.26/143,903.12 = 56,530.38/x
  3. Step 3: Cross multiply
    104,278.26x = 143,903.12 × 56,530.38
  4. Step 4: Simplify right side
    104,278.26x = 8,134,898,056.79
  5. Step 5: Solve for x
    x = 8,134,898,056.79/104,278.26
  6. Step 6: Final answer
    x = 78,011.45

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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.