Home / 110,001.10-165,001.65-72,603.40

Finding the Fourth Proportional to 110,001.10, 165,001.65 and 72,603.40

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Solution

The fourth proportional to 110,001.10, 165,001.65 and 72,603.40 is: 108,905.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,001.10 : 165,001.65 = 72,603.40 : x
  2. Step 2: Convert to fraction form
    110,001.10/165,001.65 = 72,603.40/x
  3. Step 3: Cross multiply
    110,001.10x = 165,001.65 × 72,603.40
  4. Step 4: Simplify right side
    110,001.10x = 11,979,680,795.61
  5. Step 5: Solve for x
    x = 11,979,680,795.61/110,001.10
  6. Step 6: Final answer
    x = 108,905.10

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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.