Home / 116,985.15-161,439.50-63,270.16

Finding the Fourth Proportional to 116,985.15, 161,439.50 and 63,270.16

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Solution

The fourth proportional to 116,985.15, 161,439.50 and 63,270.16 is: 87,312.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,985.15 : 161,439.50 = 63,270.16 : x
  2. Step 2: Convert to fraction form
    116,985.15/161,439.50 = 63,270.16/x
  3. Step 3: Cross multiply
    116,985.15x = 161,439.50 × 63,270.16
  4. Step 4: Simplify right side
    116,985.15x = 10,214,302,678.97
  5. Step 5: Solve for x
    x = 10,214,302,678.97/116,985.15
  6. Step 6: Final answer
    x = 87,312.82

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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.