Home / 133,299.39-183,953.53-72,870.76

Finding the Fourth Proportional to 133,299.39, 183,953.53 and 72,870.76

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Solution

The fourth proportional to 133,299.39, 183,953.53 and 72,870.76 is: 100,561.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,299.39 : 183,953.53 = 72,870.76 : x
  2. Step 2: Convert to fraction form
    133,299.39/183,953.53 = 72,870.76/x
  3. Step 3: Cross multiply
    133,299.39x = 183,953.53 × 72,870.76
  4. Step 4: Simplify right side
    133,299.39x = 13,404,833,535.78
  5. Step 5: Solve for x
    x = 13,404,833,535.78/133,299.39
  6. Step 6: Final answer
    x = 100,561.85

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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.