Home / 113,766.40-170,649.60-57,779.20

Finding the Fourth Proportional to 113,766.40, 170,649.60 and 57,779.20

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Solution

The fourth proportional to 113,766.40, 170,649.60 and 57,779.20 is: 86,668.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,766.40 : 170,649.60 = 57,779.20 : x
  2. Step 2: Convert to fraction form
    113,766.40/170,649.60 = 57,779.20/x
  3. Step 3: Cross multiply
    113,766.40x = 170,649.60 × 57,779.20
  4. Step 4: Simplify right side
    113,766.40x = 9,859,997,368.32
  5. Step 5: Solve for x
    x = 9,859,997,368.32/113,766.40
  6. Step 6: Final answer
    x = 86,668.80

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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.