Home / 145,349.43-200,598.84-80,825.10

Finding the Fourth Proportional to 145,349.43, 200,598.84 and 80,825.10

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Solution

The fourth proportional to 145,349.43, 200,598.84 and 80,825.10 is: 111,547.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,349.43 : 200,598.84 = 80,825.10 : x
  2. Step 2: Convert to fraction form
    145,349.43/200,598.84 = 80,825.10/x
  3. Step 3: Cross multiply
    145,349.43x = 200,598.84 × 80,825.10
  4. Step 4: Simplify right side
    145,349.43x = 16,213,421,302.88
  5. Step 5: Solve for x
    x = 16,213,421,302.88/145,349.43
  6. Step 6: Final answer
    x = 111,547.88

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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.