Home / 145,146.29-200,301.73-81,484.20

Finding the Fourth Proportional to 145,146.29, 200,301.73 and 81,484.20

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Solution

The fourth proportional to 145,146.29, 200,301.73 and 81,484.20 is: 112,448.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,146.29 : 200,301.73 = 81,484.20 : x
  2. Step 2: Convert to fraction form
    145,146.29/200,301.73 = 81,484.20/x
  3. Step 3: Cross multiply
    145,146.29x = 200,301.73 × 81,484.20
  4. Step 4: Simplify right side
    145,146.29x = 16,321,426,023.96
  5. Step 5: Solve for x
    x = 16,321,426,023.96/145,146.29
  6. Step 6: Final answer
    x = 112,448.11

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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.