Home / 106,828.80-147,417.77-58,421.18

Finding the Fourth Proportional to 106,828.80, 147,417.77 and 58,421.18

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Solution

The fourth proportional to 106,828.80, 147,417.77 and 58,421.18 is: 80,617.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,828.80 : 147,417.77 = 58,421.18 : x
  2. Step 2: Convert to fraction form
    106,828.80/147,417.77 = 58,421.18/x
  3. Step 3: Cross multiply
    106,828.80x = 147,417.77 × 58,421.18
  4. Step 4: Simplify right side
    106,828.80x = 8,612,319,047.17
  5. Step 5: Solve for x
    x = 8,612,319,047.17/106,828.80
  6. Step 6: Final answer
    x = 80,617.95

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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.