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Finding the Fourth Proportional to 159,146.01, 219,567.68 and 90,228.07

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Solution

The fourth proportional to 159,146.01, 219,567.68 and 90,228.07 is: 124,484.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,146.01 : 219,567.68 = 90,228.07 : x
  2. Step 2: Convert to fraction form
    159,146.01/219,567.68 = 90,228.07/x
  3. Step 3: Cross multiply
    159,146.01x = 219,567.68 × 90,228.07
  4. Step 4: Simplify right side
    159,146.01x = 19,811,167,549.64
  5. Step 5: Solve for x
    x = 19,811,167,549.64/159,146.01
  6. Step 6: Final answer
    x = 124,484.22

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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.