Home / 99,698.36-137,612.20-56,701.04

Finding the Fourth Proportional to 99,698.36, 137,612.20 and 56,701.04

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Solution

The fourth proportional to 99,698.36, 137,612.20 and 56,701.04 is: 78,263.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,698.36 : 137,612.20 = 56,701.04 : x
  2. Step 2: Convert to fraction form
    99,698.36/137,612.20 = 56,701.04/x
  3. Step 3: Cross multiply
    99,698.36x = 137,612.20 × 56,701.04
  4. Step 4: Simplify right side
    99,698.36x = 7,802,754,856.69
  5. Step 5: Solve for x
    x = 7,802,754,856.69/99,698.36
  6. Step 6: Final answer
    x = 78,263.62

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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.