Home / 219,688.31-303,155.57-122,875.40

Finding the Fourth Proportional to 219,688.31, 303,155.57 and 122,875.40

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Solution

The fourth proportional to 219,688.31, 303,155.57 and 122,875.40 is: 169,560.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,688.31 : 303,155.57 = 122,875.40 : x
  2. Step 2: Convert to fraction form
    219,688.31/303,155.57 = 122,875.40/x
  3. Step 3: Cross multiply
    219,688.31x = 303,155.57 × 122,875.40
  4. Step 4: Simplify right side
    219,688.31x = 37,250,360,410.20
  5. Step 5: Solve for x
    x = 37,250,360,410.20/219,688.31
  6. Step 6: Final answer
    x = 169,560.05

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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.