Home / 103,966.81-143,474.25-56,220.19

Finding the Fourth Proportional to 103,966.81, 143,474.25 and 56,220.19

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Solution

The fourth proportional to 103,966.81, 143,474.25 and 56,220.19 is: 77,583.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,966.81 : 143,474.25 = 56,220.19 : x
  2. Step 2: Convert to fraction form
    103,966.81/143,474.25 = 56,220.19/x
  3. Step 3: Cross multiply
    103,966.81x = 143,474.25 × 56,220.19
  4. Step 4: Simplify right side
    103,966.81x = 8,066,149,595.11
  5. Step 5: Solve for x
    x = 8,066,149,595.11/103,966.81
  6. Step 6: Final answer
    x = 77,583.89

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Double scale
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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.