Home / 103,842.05-143,302.59-58,520.74

Finding the Fourth Proportional to 103,842.05, 143,302.59 and 58,520.74

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Solution

The fourth proportional to 103,842.05, 143,302.59 and 58,520.74 is: 80,758.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,842.05 : 143,302.59 = 58,520.74 : x
  2. Step 2: Convert to fraction form
    103,842.05/143,302.59 = 58,520.74/x
  3. Step 3: Cross multiply
    103,842.05x = 143,302.59 × 58,520.74
  4. Step 4: Simplify right side
    103,842.05x = 8,386,172,894.20
  5. Step 5: Solve for x
    x = 8,386,172,894.20/103,842.05
  6. Step 6: Final answer
    x = 80,758.93

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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.