Home / 286,063.74-428,998.41-99,031.50

Finding the Fourth Proportional to 286,063.74, 428,998.41 and 99,031.50

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Solution

The fourth proportional to 286,063.74, 428,998.41 and 99,031.50 is: 148,513.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,063.74 : 428,998.41 = 99,031.50 : x
  2. Step 2: Convert to fraction form
    286,063.74/428,998.41 = 99,031.50/x
  3. Step 3: Cross multiply
    286,063.74x = 428,998.41 × 99,031.50
  4. Step 4: Simplify right side
    286,063.74x = 42,484,356,039.92
  5. Step 5: Solve for x
    x = 42,484,356,039.92/286,063.74
  6. Step 6: Final answer
    x = 148,513.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.