Home / 124,519.60-186,779.40-85,153.60

Finding the Fourth Proportional to 124,519.60, 186,779.40 and 85,153.60

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Solution

The fourth proportional to 124,519.60, 186,779.40 and 85,153.60 is: 127,730.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,519.60 : 186,779.40 = 85,153.60 : x
  2. Step 2: Convert to fraction form
    124,519.60/186,779.40 = 85,153.60/x
  3. Step 3: Cross multiply
    124,519.60x = 186,779.40 × 85,153.60
  4. Step 4: Simplify right side
    124,519.60x = 15,904,938,315.84
  5. Step 5: Solve for x
    x = 15,904,938,315.84/124,519.60
  6. Step 6: Final answer
    x = 127,730.40

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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.