Home / 127,019.91-190,539.18-42,779.64

Finding the Fourth Proportional to 127,019.91, 190,539.18 and 42,779.64

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Solution

The fourth proportional to 127,019.91, 190,539.18 and 42,779.64 is: 64,172.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,019.91 : 190,539.18 = 42,779.64 : x
  2. Step 2: Convert to fraction form
    127,019.91/190,539.18 = 42,779.64/x
  3. Step 3: Cross multiply
    127,019.91x = 190,539.18 × 42,779.64
  4. Step 4: Simplify right side
    127,019.91x = 8,151,197,526.30
  5. Step 5: Solve for x
    x = 8,151,197,526.30/127,019.91
  6. Step 6: Final answer
    x = 64,172.60

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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.