Home / 92,779.78-139,194.78-66,159.40

Finding the Fourth Proportional to 92,779.78, 139,194.78 and 66,159.40

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Solution

The fourth proportional to 92,779.78, 139,194.78 and 66,159.40 is: 99,257.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,779.78 : 139,194.78 = 66,159.40 : x
  2. Step 2: Convert to fraction form
    92,779.78/139,194.78 = 66,159.40/x
  3. Step 3: Cross multiply
    92,779.78x = 139,194.78 × 66,159.40
  4. Step 4: Simplify right side
    92,779.78x = 9,209,043,127.93
  5. Step 5: Solve for x
    x = 9,209,043,127.93/92,779.78
  6. Step 6: Final answer
    x = 99,257.01

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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.