Home / 99,176.04-136,828.68-63,387

Finding the Fourth Proportional to 99,176.04, 136,828.68 and 63,387

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Solution

The fourth proportional to 99,176.04, 136,828.68 and 63,387 is: 87,452.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,176.04 : 136,828.68 = 63,387 : x
  2. Step 2: Convert to fraction form
    99,176.04/136,828.68 = 63,387/x
  3. Step 3: Cross multiply
    99,176.04x = 136,828.68 × 63,387
  4. Step 4: Simplify right side
    99,176.04x = 8,673,159,539.16
  5. Step 5: Solve for x
    x = 8,673,159,539.16/99,176.04
  6. Step 6: Final answer
    x = 87,452.17

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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.