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Finding the Fourth Proportional to 161,728.90, 242,593.59 and 56,547.70

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Solution

The fourth proportional to 161,728.90, 242,593.59 and 56,547.70 is: 84,821.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,728.90 : 242,593.59 = 56,547.70 : x
  2. Step 2: Convert to fraction form
    161,728.90/242,593.59 = 56,547.70/x
  3. Step 3: Cross multiply
    161,728.90x = 242,593.59 × 56,547.70
  4. Step 4: Simplify right side
    161,728.90x = 13,718,109,549.24
  5. Step 5: Solve for x
    x = 13,718,109,549.24/161,728.90
  6. Step 6: Final answer
    x = 84,821.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.