Home / 145,425.06-200,604.62-87,266.75

Finding the Fourth Proportional to 145,425.06, 200,604.62 and 87,266.75

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Solution

The fourth proportional to 145,425.06, 200,604.62 and 87,266.75 is: 120,378.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,425.06 : 200,604.62 = 87,266.75 : x
  2. Step 2: Convert to fraction form
    145,425.06/200,604.62 = 87,266.75/x
  3. Step 3: Cross multiply
    145,425.06x = 200,604.62 × 87,266.75
  4. Step 4: Simplify right side
    145,425.06x = 17,506,111,783.03
  5. Step 5: Solve for x
    x = 17,506,111,783.03/145,425.06
  6. Step 6: Final answer
    x = 120,378.92

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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.