Home / 104,159.40-143,739.92-56,412.74

Finding the Fourth Proportional to 104,159.40, 143,739.92 and 56,412.74

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Solution

The fourth proportional to 104,159.40, 143,739.92 and 56,412.74 is: 77,849.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,159.40 : 143,739.92 = 56,412.74 : x
  2. Step 2: Convert to fraction form
    104,159.40/143,739.92 = 56,412.74/x
  3. Step 3: Cross multiply
    104,159.40x = 143,739.92 × 56,412.74
  4. Step 4: Simplify right side
    104,159.40x = 8,108,762,734.58
  5. Step 5: Solve for x
    x = 8,108,762,734.58/104,159.40
  6. Step 6: Final answer
    x = 77,849.55

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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.