Home / 141,926.55-212,648.83-85,648.40

Finding the Fourth Proportional to 141,926.55, 212,648.83 and 85,648.40

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Solution

The fourth proportional to 141,926.55, 212,648.83 and 85,648.40 is: 128,327.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,926.55 : 212,648.83 = 85,648.40 : x
  2. Step 2: Convert to fraction form
    141,926.55/212,648.83 = 85,648.40/x
  3. Step 3: Cross multiply
    141,926.55x = 212,648.83 × 85,648.40
  4. Step 4: Simplify right side
    141,926.55x = 18,213,031,623.13
  5. Step 5: Solve for x
    x = 18,213,031,623.13/141,926.55
  6. Step 6: Final answer
    x = 128,327.17

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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.