Home / 145,524.24-200,820.48-85,130.64

Finding the Fourth Proportional to 145,524.24, 200,820.48 and 85,130.64

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Solution

The fourth proportional to 145,524.24, 200,820.48 and 85,130.64 is: 117,478.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,524.24 : 200,820.48 = 85,130.64 : x
  2. Step 2: Convert to fraction form
    145,524.24/200,820.48 = 85,130.64/x
  3. Step 3: Cross multiply
    145,524.24x = 200,820.48 × 85,130.64
  4. Step 4: Simplify right side
    145,524.24x = 17,095,975,987.51
  5. Step 5: Solve for x
    x = 17,095,975,987.51/145,524.24
  6. Step 6: Final answer
    x = 117,478.55

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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.