Home / 94,416.60-141,624.90-86,543.40

Finding the Fourth Proportional to 94,416.60, 141,624.90 and 86,543.40

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Solution

The fourth proportional to 94,416.60, 141,624.90 and 86,543.40 is: 129,815.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,416.60 : 141,624.90 = 86,543.40 : x
  2. Step 2: Convert to fraction form
    94,416.60/141,624.90 = 86,543.40/x
  3. Step 3: Cross multiply
    94,416.60x = 141,624.90 × 86,543.40
  4. Step 4: Simplify right side
    94,416.60x = 12,256,700,370.66
  5. Step 5: Solve for x
    x = 12,256,700,370.66/94,416.60
  6. Step 6: Final answer
    x = 129,815.10

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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.