Home / 125,585.78-173,312.07-71,888.06

Finding the Fourth Proportional to 125,585.78, 173,312.07 and 71,888.06

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Solution

The fourth proportional to 125,585.78, 173,312.07 and 71,888.06 is: 99,207.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,585.78 : 173,312.07 = 71,888.06 : x
  2. Step 2: Convert to fraction form
    125,585.78/173,312.07 = 71,888.06/x
  3. Step 3: Cross multiply
    125,585.78x = 173,312.07 × 71,888.06
  4. Step 4: Simplify right side
    125,585.78x = 12,459,068,486.88
  5. Step 5: Solve for x
    x = 12,459,068,486.88/125,585.78
  6. Step 6: Final answer
    x = 99,207.64

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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.