Home / 103,496.40-142,819.20-61,068.60

Finding the Fourth Proportional to 103,496.40, 142,819.20 and 61,068.60

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Solution

The fourth proportional to 103,496.40, 142,819.20 and 61,068.60 is: 84,271.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,496.40 : 142,819.20 = 61,068.60 : x
  2. Step 2: Convert to fraction form
    103,496.40/142,819.20 = 61,068.60/x
  3. Step 3: Cross multiply
    103,496.40x = 142,819.20 × 61,068.60
  4. Step 4: Simplify right side
    103,496.40x = 8,721,768,597.12
  5. Step 5: Solve for x
    x = 8,721,768,597.12/103,496.40
  6. Step 6: Final answer
    x = 84,271.23

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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.