Home / 94,490.40-141,946.80-78,938.40

Finding the Fourth Proportional to 94,490.40, 141,946.80 and 78,938.40

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Solution

The fourth proportional to 94,490.40, 141,946.80 and 78,938.40 is: 118,584.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,490.40 : 141,946.80 = 78,938.40 : x
  2. Step 2: Convert to fraction form
    94,490.40/141,946.80 = 78,938.40/x
  3. Step 3: Cross multiply
    94,490.40x = 141,946.80 × 78,938.40
  4. Step 4: Simplify right side
    94,490.40x = 11,205,053,277.12
  5. Step 5: Solve for x
    x = 11,205,053,277.12/94,490.40
  6. Step 6: Final answer
    x = 118,584.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.