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Finding the Fourth Proportional to 159,547.73, 220,173.91 and 87,926.21

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Solution

The fourth proportional to 159,547.73, 220,173.91 and 87,926.21 is: 121,337.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,547.73 : 220,173.91 = 87,926.21 : x
  2. Step 2: Convert to fraction form
    159,547.73/220,173.91 = 87,926.21/x
  3. Step 3: Cross multiply
    159,547.73x = 220,173.91 × 87,926.21
  4. Step 4: Simplify right side
    159,547.73x = 19,359,057,075.79
  5. Step 5: Solve for x
    x = 19,359,057,075.79/159,547.73
  6. Step 6: Final answer
    x = 121,337.09

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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.