Home / 125,564.96-173,312.52-77,791.16

Finding the Fourth Proportional to 125,564.96, 173,312.52 and 77,791.16

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Solution

The fourth proportional to 125,564.96, 173,312.52 and 77,791.16 is: 107,372.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,564.96 : 173,312.52 = 77,791.16 : x
  2. Step 2: Convert to fraction form
    125,564.96/173,312.52 = 77,791.16/x
  3. Step 3: Cross multiply
    125,564.96x = 173,312.52 × 77,791.16
  4. Step 4: Simplify right side
    125,564.96x = 13,482,181,973.32
  5. Step 5: Solve for x
    x = 13,482,181,973.32/125,564.96
  6. Step 6: Final answer
    x = 107,372.17

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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.