Home / 144,307.89-199,145.63-80,646.75

Finding the Fourth Proportional to 144,307.89, 199,145.63 and 80,646.75

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Solution

The fourth proportional to 144,307.89, 199,145.63 and 80,646.75 is: 111,292.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,307.89 : 199,145.63 = 80,646.75 : x
  2. Step 2: Convert to fraction form
    144,307.89/199,145.63 = 80,646.75/x
  3. Step 3: Cross multiply
    144,307.89x = 199,145.63 × 80,646.75
  4. Step 4: Simplify right side
    144,307.89x = 16,060,447,836.20
  5. Step 5: Solve for x
    x = 16,060,447,836.20/144,307.89
  6. Step 6: Final answer
    x = 111,292.93

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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.