Home / 103,199.20-142,357.23-64,944.47

Finding the Fourth Proportional to 103,199.20, 142,357.23 and 64,944.47

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Solution

The fourth proportional to 103,199.20, 142,357.23 and 64,944.47 is: 89,587.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,199.20 : 142,357.23 = 64,944.47 : x
  2. Step 2: Convert to fraction form
    103,199.20/142,357.23 = 64,944.47/x
  3. Step 3: Cross multiply
    103,199.20x = 142,357.23 × 64,944.47
  4. Step 4: Simplify right side
    103,199.20x = 9,245,314,853.02
  5. Step 5: Solve for x
    x = 9,245,314,853.02/103,199.20
  6. Step 6: Final answer
    x = 89,587.08

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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.