Home / 144,411.68-199,338.30-99,239.20

Finding the Fourth Proportional to 144,411.68, 199,338.30 and 99,239.20

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Solution

The fourth proportional to 144,411.68, 199,338.30 and 99,239.20 is: 136,984.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,411.68 : 199,338.30 = 99,239.20 : x
  2. Step 2: Convert to fraction form
    144,411.68/199,338.30 = 99,239.20/x
  3. Step 3: Cross multiply
    144,411.68x = 199,338.30 × 99,239.20
  4. Step 4: Simplify right side
    144,411.68x = 19,782,173,421.36
  5. Step 5: Solve for x
    x = 19,782,173,421.36/144,411.68
  6. Step 6: Final answer
    x = 136,984.58

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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.