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Finding the Fourth Proportional to 159,495.60, 220,106.70 and 87,875.10

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Solution

The fourth proportional to 159,495.60, 220,106.70 and 87,875.10 is: 121,269.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,495.60 : 220,106.70 = 87,875.10 : x
  2. Step 2: Convert to fraction form
    159,495.60/220,106.70 = 87,875.10/x
  3. Step 3: Cross multiply
    159,495.60x = 220,106.70 × 87,875.10
  4. Step 4: Simplify right side
    159,495.60x = 19,341,898,273.17
  5. Step 5: Solve for x
    x = 19,341,898,273.17/159,495.60
  6. Step 6: Final answer
    x = 121,269.17

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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.