Home / 108,330.60-162,495.90-91,223.40

Finding the Fourth Proportional to 108,330.60, 162,495.90 and 91,223.40

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Solution

The fourth proportional to 108,330.60, 162,495.90 and 91,223.40 is: 136,835.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,330.60 : 162,495.90 = 91,223.40 : x
  2. Step 2: Convert to fraction form
    108,330.60/162,495.90 = 91,223.40/x
  3. Step 3: Cross multiply
    108,330.60x = 162,495.90 × 91,223.40
  4. Step 4: Simplify right side
    108,330.60x = 14,823,428,484.06
  5. Step 5: Solve for x
    x = 14,823,428,484.06/108,330.60
  6. Step 6: Final answer
    x = 136,835.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.