Home / 104,253.38-143,870.43-56,507.07

Finding the Fourth Proportional to 104,253.38, 143,870.43 and 56,507.07

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Solution

The fourth proportional to 104,253.38, 143,870.43 and 56,507.07 is: 77,980.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,253.38 : 143,870.43 = 56,507.07 : x
  2. Step 2: Convert to fraction form
    104,253.38/143,870.43 = 56,507.07/x
  3. Step 3: Cross multiply
    104,253.38x = 143,870.43 × 56,507.07
  4. Step 4: Simplify right side
    104,253.38x = 8,129,696,083.23
  5. Step 5: Solve for x
    x = 8,129,696,083.23/104,253.38
  6. Step 6: Final answer
    x = 77,980.17

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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.