Home / 102,369.12-141,356.60-64,192.84

Finding the Fourth Proportional to 102,369.12, 141,356.60 and 64,192.84

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Solution

The fourth proportional to 102,369.12, 141,356.60 and 64,192.84 is: 88,640.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,369.12 : 141,356.60 = 64,192.84 : x
  2. Step 2: Convert to fraction form
    102,369.12/141,356.60 = 64,192.84/x
  3. Step 3: Cross multiply
    102,369.12x = 141,356.60 × 64,192.84
  4. Step 4: Simplify right side
    102,369.12x = 9,074,081,606.74
  5. Step 5: Solve for x
    x = 9,074,081,606.74/102,369.12
  6. Step 6: Final answer
    x = 88,640.81

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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.