Home / 102,221.61-141,065.81-56,898.62

Finding the Fourth Proportional to 102,221.61, 141,065.81 and 56,898.62

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Solution

The fourth proportional to 102,221.61, 141,065.81 and 56,898.62 is: 78,520.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,221.61 : 141,065.81 = 56,898.62 : x
  2. Step 2: Convert to fraction form
    102,221.61/141,065.81 = 56,898.62/x
  3. Step 3: Cross multiply
    102,221.61x = 141,065.81 × 56,898.62
  4. Step 4: Simplify right side
    102,221.61x = 8,026,449,918.18
  5. Step 5: Solve for x
    x = 8,026,449,918.18/102,221.61
  6. Step 6: Final answer
    x = 78,520.09

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1.5x scale

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.