Home / 116,665.04-160,911.81-87,985.91

Finding the Fourth Proportional to 116,665.04, 160,911.81 and 87,985.91

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Solution

The fourth proportional to 116,665.04, 160,911.81 and 87,985.91 is: 121,355.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,665.04 : 160,911.81 = 87,985.91 : x
  2. Step 2: Convert to fraction form
    116,665.04/160,911.81 = 87,985.91/x
  3. Step 3: Cross multiply
    116,665.04x = 160,911.81 × 87,985.91
  4. Step 4: Simplify right side
    116,665.04x = 14,157,971,228.04
  5. Step 5: Solve for x
    x = 14,157,971,228.04/116,665.04
  6. Step 6: Final answer
    x = 121,355.74

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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.