Home / 104,072.34-155,355.45-91,461.32

Finding the Fourth Proportional to 104,072.34, 155,355.45 and 91,461.32

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Solution

The fourth proportional to 104,072.34, 155,355.45 and 91,461.32 is: 136,530.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,072.34 : 155,355.45 = 91,461.32 : x
  2. Step 2: Convert to fraction form
    104,072.34/155,355.45 = 91,461.32/x
  3. Step 3: Cross multiply
    104,072.34x = 155,355.45 × 91,461.32
  4. Step 4: Simplify right side
    104,072.34x = 14,209,013,749.42
  5. Step 5: Solve for x
    x = 14,209,013,749.42/104,072.34
  6. Step 6: Final answer
    x = 136,530.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.