Home / 133,070.12-183,667.64-87,756.28

Finding the Fourth Proportional to 133,070.12, 183,667.64 and 87,756.28

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Solution

The fourth proportional to 133,070.12, 183,667.64 and 87,756.28 is: 121,124.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,070.12 : 183,667.64 = 87,756.28 : x
  2. Step 2: Convert to fraction form
    133,070.12/183,667.64 = 87,756.28/x
  3. Step 3: Cross multiply
    133,070.12x = 183,667.64 × 87,756.28
  4. Step 4: Simplify right side
    133,070.12x = 16,117,988,842.78
  5. Step 5: Solve for x
    x = 16,117,988,842.78/133,070.12
  6. Step 6: Final answer
    x = 121,124.03

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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.