Home / 133,124.34-183,715.70-72,699.05

Finding the Fourth Proportional to 133,124.34, 183,715.70 and 72,699.05

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Solution

The fourth proportional to 133,124.34, 183,715.70 and 72,699.05 is: 100,326.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,124.34 : 183,715.70 = 72,699.05 : x
  2. Step 2: Convert to fraction form
    133,124.34/183,715.70 = 72,699.05/x
  3. Step 3: Cross multiply
    133,124.34x = 183,715.70 × 72,699.05
  4. Step 4: Simplify right side
    133,124.34x = 13,355,956,955.88
  5. Step 5: Solve for x
    x = 13,355,956,955.88/133,124.34
  6. Step 6: Final answer
    x = 100,326.93

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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.