Home / 104,066.12-143,610.74-56,319.40

Finding the Fourth Proportional to 104,066.12, 143,610.74 and 56,319.40

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Solution

The fourth proportional to 104,066.12, 143,610.74 and 56,319.40 is: 77,720.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,066.12 : 143,610.74 = 56,319.40 : x
  2. Step 2: Convert to fraction form
    104,066.12/143,610.74 = 56,319.40/x
  3. Step 3: Cross multiply
    104,066.12x = 143,610.74 × 56,319.40
  4. Step 4: Simplify right side
    104,066.12x = 8,088,070,710.36
  5. Step 5: Solve for x
    x = 8,088,070,710.36/104,066.12
  6. Step 6: Final answer
    x = 77,720.50

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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.