Home / 141,087.04-194,702.49-77,430.76

Finding the Fourth Proportional to 141,087.04, 194,702.49 and 77,430.76

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Solution

The fourth proportional to 141,087.04, 194,702.49 and 77,430.76 is: 106,855.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,087.04 : 194,702.49 = 77,430.76 : x
  2. Step 2: Convert to fraction form
    141,087.04/194,702.49 = 77,430.76/x
  3. Step 3: Cross multiply
    141,087.04x = 194,702.49 × 77,430.76
  4. Step 4: Simplify right side
    141,087.04x = 15,075,961,774.59
  5. Step 5: Solve for x
    x = 15,075,961,774.59/141,087.04
  6. Step 6: Final answer
    x = 106,855.75

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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.