Home / 155,490.64-232,022.81-138,735.45

Finding the Fourth Proportional to 155,490.64, 232,022.81 and 138,735.45

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Solution

The fourth proportional to 155,490.64, 232,022.81 and 138,735.45 is: 207,020.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,490.64 : 232,022.81 = 138,735.45 : x
  2. Step 2: Convert to fraction form
    155,490.64/232,022.81 = 138,735.45/x
  3. Step 3: Cross multiply
    155,490.64x = 232,022.81 × 138,735.45
  4. Step 4: Simplify right side
    155,490.64x = 32,189,789,302.45
  5. Step 5: Solve for x
    x = 32,189,789,302.45/155,490.64
  6. Step 6: Final answer
    x = 207,020.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.