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Finding the Fourth Proportional to 144,492.99, 199,397.32 and 79,962.20

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Solution

The fourth proportional to 144,492.99, 199,397.32 and 79,962.20 is: 110,346.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,492.99 : 199,397.32 = 79,962.20 : x
  2. Step 2: Convert to fraction form
    144,492.99/199,397.32 = 79,962.20/x
  3. Step 3: Cross multiply
    144,492.99x = 199,397.32 × 79,962.20
  4. Step 4: Simplify right side
    144,492.99x = 15,944,248,381.30
  5. Step 5: Solve for x
    x = 15,944,248,381.30/144,492.99
  6. Step 6: Final answer
    x = 110,346.17

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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.