Home / 132,699.81-183,123.01-72,271.52

Finding the Fourth Proportional to 132,699.81, 183,123.01 and 72,271.52

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Solution

The fourth proportional to 132,699.81, 183,123.01 and 72,271.52 is: 99,733.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,699.81 : 183,123.01 = 72,271.52 : x
  2. Step 2: Convert to fraction form
    132,699.81/183,123.01 = 72,271.52/x
  3. Step 3: Cross multiply
    132,699.81x = 183,123.01 × 72,271.52
  4. Step 4: Simplify right side
    132,699.81x = 13,234,578,279.68
  5. Step 5: Solve for x
    x = 13,234,578,279.68/132,699.81
  6. Step 6: Final answer
    x = 99,733.21

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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.