Home / 104,062.12-143,605.22-56,315.40

Finding the Fourth Proportional to 104,062.12, 143,605.22 and 56,315.40

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Solution

The fourth proportional to 104,062.12, 143,605.22 and 56,315.40 is: 77,714.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,062.12 : 143,605.22 = 56,315.40 : x
  2. Step 2: Convert to fraction form
    104,062.12/143,605.22 = 56,315.40/x
  3. Step 3: Cross multiply
    104,062.12x = 143,605.22 × 56,315.40
  4. Step 4: Simplify right side
    104,062.12x = 8,087,185,406.39
  5. Step 5: Solve for x
    x = 8,087,185,406.39/104,062.12
  6. Step 6: Final answer
    x = 77,714.98

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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.