Home / 103,117.52-142,302.12-58,405.52

Finding the Fourth Proportional to 103,117.52, 142,302.12 and 58,405.52

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Solution

The fourth proportional to 103,117.52, 142,302.12 and 58,405.52 is: 80,599.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,117.52 : 142,302.12 = 58,405.52 : x
  2. Step 2: Convert to fraction form
    103,117.52/142,302.12 = 58,405.52/x
  3. Step 3: Cross multiply
    103,117.52x = 142,302.12 × 58,405.52
  4. Step 4: Simplify right side
    103,117.52x = 8,311,229,315.70
  5. Step 5: Solve for x
    x = 8,311,229,315.70/103,117.52
  6. Step 6: Final answer
    x = 80,599.58

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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.