Home / 145,518.24-200,812.20-85,124.64

Finding the Fourth Proportional to 145,518.24, 200,812.20 and 85,124.64

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Solution

The fourth proportional to 145,518.24, 200,812.20 and 85,124.64 is: 117,470.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,518.24 : 200,812.20 = 85,124.64 : x
  2. Step 2: Convert to fraction form
    145,518.24/200,812.20 = 85,124.64/x
  3. Step 3: Cross multiply
    145,518.24x = 200,812.20 × 85,124.64
  4. Step 4: Simplify right side
    145,518.24x = 17,094,066,232.61
  5. Step 5: Solve for x
    x = 17,094,066,232.61/145,518.24
  6. Step 6: Final answer
    x = 117,470.27

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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.