Home / 144,909.12-199,991-96,508.40

Finding the Fourth Proportional to 144,909.12, 199,991 and 96,508.40

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Solution

The fourth proportional to 144,909.12, 199,991 and 96,508.40 is: 133,192.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,909.12 : 199,991 = 96,508.40 : x
  2. Step 2: Convert to fraction form
    144,909.12/199,991 = 96,508.40/x
  3. Step 3: Cross multiply
    144,909.12x = 199,991 × 96,508.40
  4. Step 4: Simplify right side
    144,909.12x = 19,300,811,424.40
  5. Step 5: Solve for x
    x = 19,300,811,424.40/144,909.12
  6. Step 6: Final answer
    x = 133,192.52

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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.