Home / 102,220.12-141,063.78-56,897.14

Finding the Fourth Proportional to 102,220.12, 141,063.78 and 56,897.14

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Solution

The fourth proportional to 102,220.12, 141,063.78 and 56,897.14 is: 78,518.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,220.12 : 141,063.78 = 56,897.14 : x
  2. Step 2: Convert to fraction form
    102,220.12/141,063.78 = 56,897.14/x
  3. Step 3: Cross multiply
    102,220.12x = 141,063.78 × 56,897.14
  4. Step 4: Simplify right side
    102,220.12x = 8,026,125,639.59
  5. Step 5: Solve for x
    x = 8,026,125,639.59/102,220.12
  6. Step 6: Final answer
    x = 78,518.06

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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.