Home / 140,421.02-193,882.48-86,779.58

Finding the Fourth Proportional to 140,421.02, 193,882.48 and 86,779.58

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Solution

The fourth proportional to 140,421.02, 193,882.48 and 86,779.58 is: 119,818.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,421.02 : 193,882.48 = 86,779.58 : x
  2. Step 2: Convert to fraction form
    140,421.02/193,882.48 = 86,779.58/x
  3. Step 3: Cross multiply
    140,421.02x = 193,882.48 × 86,779.58
  4. Step 4: Simplify right side
    140,421.02x = 16,825,038,997.40
  5. Step 5: Solve for x
    x = 16,825,038,997.40/140,421.02
  6. Step 6: Final answer
    x = 119,818.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.