Home / 145,437.96-200,538.91-102,403.70

Finding the Fourth Proportional to 145,437.96, 200,538.91 and 102,403.70

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Solution

The fourth proportional to 145,437.96, 200,538.91 and 102,403.70 is: 141,200.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,437.96 : 200,538.91 = 102,403.70 : x
  2. Step 2: Convert to fraction form
    145,437.96/200,538.91 = 102,403.70/x
  3. Step 3: Cross multiply
    145,437.96x = 200,538.91 × 102,403.70
  4. Step 4: Simplify right side
    145,437.96x = 20,535,926,377.97
  5. Step 5: Solve for x
    x = 20,535,926,377.97/145,437.96
  6. Step 6: Final answer
    x = 141,200.59

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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.