Home / 106,828.79-147,417.77-58,421.17

Finding the Fourth Proportional to 106,828.79, 147,417.77 and 58,421.17

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Solution

The fourth proportional to 106,828.79, 147,417.77 and 58,421.17 is: 80,617.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,828.79 : 147,417.77 = 58,421.17 : x
  2. Step 2: Convert to fraction form
    106,828.79/147,417.77 = 58,421.17/x
  3. Step 3: Cross multiply
    106,828.79x = 147,417.77 × 58,421.17
  4. Step 4: Simplify right side
    106,828.79x = 8,612,318,379.70
  5. Step 5: Solve for x
    x = 8,612,318,379.70/106,828.79
  6. Step 6: Final answer
    x = 80,617.95

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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.