Home / 204,848.76-307,368.18-86,547.72

Finding the Fourth Proportional to 204,848.76, 307,368.18 and 86,547.72

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Solution

The fourth proportional to 204,848.76, 307,368.18 and 86,547.72 is: 129,861.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,848.76 : 307,368.18 = 86,547.72 : x
  2. Step 2: Convert to fraction form
    204,848.76/307,368.18 = 86,547.72/x
  3. Step 3: Cross multiply
    204,848.76x = 307,368.18 × 86,547.72
  4. Step 4: Simplify right side
    204,848.76x = 26,602,015,179.55
  5. Step 5: Solve for x
    x = 26,602,015,179.55/204,848.76
  6. Step 6: Final answer
    x = 129,861.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.