Home / 280,087.09-420,130.73-93,098.59

Finding the Fourth Proportional to 280,087.09, 420,130.73 and 93,098.59

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Solution

The fourth proportional to 280,087.09, 420,130.73 and 93,098.59 is: 139,647.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,087.09 : 420,130.73 = 93,098.59 : x
  2. Step 2: Convert to fraction form
    280,087.09/420,130.73 = 93,098.59/x
  3. Step 3: Cross multiply
    280,087.09x = 420,130.73 × 93,098.59
  4. Step 4: Simplify right side
    280,087.09x = 39,113,578,578.67
  5. Step 5: Solve for x
    x = 39,113,578,578.67/280,087.09
  6. Step 6: Final answer
    x = 139,647.92

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1.5x scale

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.