Home / 191,949.75-287,355.80-142,252.81

Finding the Fourth Proportional to 191,949.75, 287,355.80 and 142,252.81

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Solution

The fourth proportional to 191,949.75, 287,355.80 and 142,252.81 is: 212,957.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,949.75 : 287,355.80 = 142,252.81 : x
  2. Step 2: Convert to fraction form
    191,949.75/287,355.80 = 142,252.81/x
  3. Step 3: Cross multiply
    191,949.75x = 287,355.80 × 142,252.81
  4. Step 4: Simplify right side
    191,949.75x = 40,877,169,657.04
  5. Step 5: Solve for x
    x = 40,877,169,657.04/191,949.75
  6. Step 6: Final answer
    x = 212,957.66

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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.