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Finding the Fourth Proportional to 110,005.60, 165,008.40 and 87,698.20

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Solution

The fourth proportional to 110,005.60, 165,008.40 and 87,698.20 is: 131,547.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,005.60 : 165,008.40 = 87,698.20 : x
  2. Step 2: Convert to fraction form
    110,005.60/165,008.40 = 87,698.20/x
  3. Step 3: Cross multiply
    110,005.60x = 165,008.40 × 87,698.20
  4. Step 4: Simplify right side
    110,005.60x = 14,470,939,664.88
  5. Step 5: Solve for x
    x = 14,470,939,664.88/110,005.60
  6. Step 6: Final answer
    x = 131,547.30

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1.5x scale

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.