Home / 133,075.92-183,636.94-76,487.30

Finding the Fourth Proportional to 133,075.92, 183,636.94 and 76,487.30

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Solution

The fourth proportional to 133,075.92, 183,636.94 and 76,487.30 is: 105,547.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,075.92 : 183,636.94 = 76,487.30 : x
  2. Step 2: Convert to fraction form
    133,075.92/183,636.94 = 76,487.30/x
  3. Step 3: Cross multiply
    133,075.92x = 183,636.94 × 76,487.30
  4. Step 4: Simplify right side
    133,075.92x = 14,045,893,720.86
  5. Step 5: Solve for x
    x = 14,045,893,720.86/133,075.92
  6. Step 6: Final answer
    x = 105,547.97

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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.