Home / 145,259.64-200,436.48-81,585.24

Finding the Fourth Proportional to 145,259.64, 200,436.48 and 81,585.24

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Solution

The fourth proportional to 145,259.64, 200,436.48 and 81,585.24 is: 112,575.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,259.64 : 200,436.48 = 81,585.24 : x
  2. Step 2: Convert to fraction form
    145,259.64/200,436.48 = 81,585.24/x
  3. Step 3: Cross multiply
    145,259.64x = 200,436.48 × 81,585.24
  4. Step 4: Simplify right side
    145,259.64x = 16,352,658,325.56
  5. Step 5: Solve for x
    x = 16,352,658,325.56/145,259.64
  6. Step 6: Final answer
    x = 112,575.37

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1.5x scale

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.