Home / 141,108.18-194,729.12-77,446.14

Finding the Fourth Proportional to 141,108.18, 194,729.12 and 77,446.14

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Solution

The fourth proportional to 141,108.18, 194,729.12 and 77,446.14 is: 106,875.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,108.18 : 194,729.12 = 77,446.14 : x
  2. Step 2: Convert to fraction form
    141,108.18/194,729.12 = 77,446.14/x
  3. Step 3: Cross multiply
    141,108.18x = 194,729.12 × 77,446.14
  4. Step 4: Simplify right side
    141,108.18x = 15,081,018,689.60
  5. Step 5: Solve for x
    x = 15,081,018,689.60/141,108.18
  6. Step 6: Final answer
    x = 106,875.58

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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.