Home / 102,701.04-141,720.39-56,758.74

Finding the Fourth Proportional to 102,701.04, 141,720.39 and 56,758.74

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Solution

The fourth proportional to 102,701.04, 141,720.39 and 56,758.74 is: 78,323.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,701.04 : 141,720.39 = 56,758.74 : x
  2. Step 2: Convert to fraction form
    102,701.04/141,720.39 = 56,758.74/x
  3. Step 3: Cross multiply
    102,701.04x = 141,720.39 × 56,758.74
  4. Step 4: Simplify right side
    102,701.04x = 8,043,870,768.71
  5. Step 5: Solve for x
    x = 8,043,870,768.71/102,701.04
  6. Step 6: Final answer
    x = 78,323.17

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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.