Home / 102,784.21-141,885.94-62,510.91

Finding the Fourth Proportional to 102,784.21, 141,885.94 and 62,510.91

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Solution

The fourth proportional to 102,784.21, 141,885.94 and 62,510.91 is: 86,291.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,784.21 : 141,885.94 = 62,510.91 : x
  2. Step 2: Convert to fraction form
    102,784.21/141,885.94 = 62,510.91/x
  3. Step 3: Cross multiply
    102,784.21x = 141,885.94 × 62,510.91
  4. Step 4: Simplify right side
    102,784.21x = 8,869,418,913.05
  5. Step 5: Solve for x
    x = 8,869,418,913.05/102,784.21
  6. Step 6: Final answer
    x = 86,291.65

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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.